bluuebunny/crossref_metadata_2025 huggingface dataset:
O contexto importa na educação de pessoas com altas habilidades/superdotação
Authors: Shore Bruce M. , Martins Mariana Santos Freitas
Published: August 2024

As contribuições acadêmicas de Bruce M. Shore na área de educação e altas habilidades/superdotação têm se concentrado em três contextos que impactam a compreensão das altas habilidades/superdotação e os ambientes instrucionais que atendem às necessidades educacionais de estudantes com altas habilidades/superdotação. Este artigo descreve essas contribuições e fornece exemplos selecionados, além de uma Bibliografia Suplementar On-line mais completa. Em primeiro lugar, as altas habilidades/superdotação se beneficiam da conceitualização em termos de teorias que abordam o desenvolvimento de expertise. Em meio a paralelos entre experts e pessoas com altas habilidades/superdotação destacam-se a interconectividade do conhecimento, os processos metacognitivos, a tomada de perspectiva, os papéis de aprendizagem ativa, a afinidade por novidades e complexidade e a representação e planejamento de tarefas. A pesquisa ilustrativa é descrita desde a idade pré-escolar até a do ensino superior e inclui conexões com pesquisas sobre criatividade. Em segundo lugar, a educação para pessoas com altas habilidades/superdotação se beneficia quando guiada pela teoria socioconstrutivista da educação e por sua expressão na instrução baseada na pesquisa. Exemplos incluem elaborações a partir de interesses do aluno, formulação de perguntas, pesquisa colaborativa e papéis de aprendizagem ativa. Práticas instrucionais específicas desejáveis foram enquadradas pelas teorias acima e pela consideração do contexto das melhores práticas e das mais amplamente recomendadas, com respectiva fundamentação em pesquisa. Por fim, em terceiro lugar, a educação para pessoas com altas habilidades/superdotação, em todos os níveis — incluindo o ensino superior e a formação de professores —, precisa ser um elemento inerente ao contexto da educação geral. A maioria das práticas específicas da educação para pessoas com altas habilidades/ superdotação também funciona na educação geral, incluindo o aprendizado de habilidades de alto nível dentro do tema de estudo. São citados dezenove exemplos de como a educação para pessoas com altas habilidades/superdotação contribui para a qualidade da educação geral.
Design e análise de um curso online de letramento em avaliação (de línguas) para professores de espanhol à luz do MODE
Authors: Fernandes Marcella Nascimento , Linhati Suzana Toniolo , Maia Janaina Faria Cardoso
Published: August 2024

Estudos brasileiros sobre design de materiais digitais voltados ao ensino de línguas adicionais vêm sendo desenvolvidos na área da Linguística Aplicada, especificamente na subárea de Linguagem e Tecnologias.Desse modo, o objetivo do presente estudo consiste emanalisar a proposta de um curso MOOC de letramento em avaliação (de línguas) voltado para professores de Espanhol como Língua Adicional (ELA) do Brasil a partir do framework MoDE. Os pressupostos que sustentam esta pesquisa tratam sobre a Educação Aberta (FERREIRA, CORRÊA, 2019; FURTADO, 2019) e os MOOCs (BARIN, BASTOS, 2013; AMORÓS-NEGRÉ, RECIO DIEGO, TOMÉ CORNEJO, 2018; FONTANA, LEFFA, 2018), a avaliação (FERNANDES,2019, 2021, 2023; LUCKESI, 2011; DAMACENA E QUEVEDO-CAMARGO, 2021) e o framework MoDE (REIS, 2021). Como metodologia, adotamos o estudo de caso, de abordagem qualitativa, como forma de analisar as etapas de desenvolvimento do curso intitulado “Letramento em avaliação para professores de espanhol como língua adicional”.Com o levantamento de informações ao longo da pesquisa e da análise das informações, concluiu-se que as fases do MoDE contribuíram para a análise do design piloto e a definição do redesign de um curso de concepção MOOC sobre avaliação para docentes de espanhol em serviço.
Desenvolvimento do pensamento crítico na aprendizagem de espanhol: integrando histórias digitais e temas transversais
Authors: Weirich da Silva Coelho Iandra Maria , Bufuman Alecrim Bruno
Published: August 2024

Este artigo tem por objetivo apresentar em quais aspectos um produto educacional que integra histórias digitais e temas transversais (racismo e gênero) pode mediar o desenvolvimento do pensamento crítico no processo de ensino e aprendizagem de língua espanhola. Os procedimentos metodológicos envolvem uma pesquisa de natureza aplicada, com abordagem qualitativa, do tipo pesquisa-ação estratégica. A proposta foi aplicada e avaliada por estudantes do Ensino Médio, do Instituto Federal do Amazonas. A coleta de dados deu-se por meio de um questionário e rodas de conversa, cuja análise foi realizada com auxílio do método de Análise de Conteúdo (Bardin, 2011). Os resultados indicam, como principais aspectos, a compreensão das relações de gênero, discriminação social e racial, desenvolvimento da consciência crítica, desenvolvimento da empatia e respeito e estímulo à formação integral.
As metamorfoses de Don Juan e a releitura de Camila Sosa Villada
Authors: Mendonça Felipe Da Silva
Published: August 2024

Este artigo tem como objetivo analisar a releitura do mito literário de Don Juan presente no conto “Mulher tela”, de Camila Sosa Villada. Como base teórica, pautamo-nos nas definições de Herrero Cecilia (2006) e Sellier (2020) sobre o mito literário, bem como em estudiosos de Don Juan, a saber: Benítez Reyes (2005), González (2010), Lasaga Medina (2004), Losa (1981), Mezan (1988), Perrone-Moisés (1988), Rousset (1981), Sequeira (2016) e Watt (1997). Destacam-se também as contribuições de Bataille (2021) sobre o erotismo e de Ahmed (2016) sobre a felicidade. Ao final, verificamos que a narrativa da escritora argentina retoma elementos estruturantes do mito literário e, ao mesmo tempo, atualiza para a contemporaneidade a figura do burlador, conservando seu caráter subversivo. Para tanto, concebe uma versão feminina de Don Juan e coloca em cena relacionamentos afetivos não heteronormativos.
Heterossexualidade enquanto categoria de análise: por uma abordagem lésbicofeminista das existências lésbicas e seu envelhecimento
Authors: Sanches Sarah Ryanne Sukerman , Silva Zuleide Paiva da , Motta Alda Britto da
Published: August 2024

Este artigo deriva de uma pesquisa de mestrado, em andamento, acerca do envelhecimento lésbico no contexto do interior da Bahia. Em seu percurso metodológico, a pesquisa contou com revisão bibliográfica temática, abrangendo teses, dissertações, monografias e artigos, publicados entre os anos de 2001 a 2021, sobre lésbicas velhas e temas correlatos, que apresentavam relevância para a pesquisa. Entre os resultados desta revisão, destaca-se a identificação de lacunas existentes no conjunto dessas produções, dentre elas a ausência de reflexões críticas sobre a heterossexualidade e a predominância de abordagens que se centram nas experiências afetivossexuais e de sociabilidade de suas interlocutoras. Do ponto de vista teórico, há também a escassez quando não ausência de autoras lésbicas feministas em suas referências. Neste artigo, apresento parte da perspectiva teórica adotada para a pesquisa, apontando a importância de uma abordagem teórica lésbicofeminista, que considere a heterossexualidade enquanto categoria de análise e princípio organizativo da vida social, para uma análise crítica das existências lésbicas.
Apresentação
Authors: Ulisses Frade dos Reis Cecília , Luiz Correa Vinícius , Camargo Miranda Antônio César , Barossi Giulia Maria
Published: August 2024

Apresentação do volume 10, número 2 - Revista Sociologias Plurais.
A teoria da justiça de Nancy Fraser em quatro dimensões: um exercício de interpretação sociológica
Authors: Bueno Enrico
Published: August 2024

O artigo tem como objetivo analisar a proposta de Nancy Fraser para uma teoria da justiça, considerando sua formulação em quatro dimensões: teoria social, teoria política, política prática e filosofia moral. Busca-se demonstrar se, e de que maneira, a autora sustenta sua proposição teórica sobre um diagnóstico sociológico e político do tempo presente. A metodologia consistiu em um estudo de natureza bibliográfica dos textos publicados pela autora acerca da justiça social entre 1995 e 2011, categorizando sua abordagem teórica nas quatro dimensões mencionadas. Como resultado, confirmou-se a possibilidade de realizar uma interpretação sociológica da teoria da justiça de Fraser, na qual a posição normativa emerge de um diagnóstico de época fundamentado por uma teoria social explícita e coesa.
The objectivity of lifeworld and everyday experiences of people with mental disorders
Authors: Mesquita Soares de Araujo Bruno
Published: August 2024

This article aims to adapt Alfred Schütz's sociological approach to understanding the everyday experiences of people with mental disorders. According to Schütz, common sense encompasses objective knowledge that organizes societal experiences in everyday life. When this objective knowledge is disrupted, the everyday lives of those affected can be significantly impacted. Due to these impacts, efforts in mental health care should focus on understanding the dilemmas faced by its users in their daily routine and incorporating their everyday needs into healthcare practices. In order to highlight these issues, this paper is divided into four parts. The first section introduces phenomenology and its relevance in understanding Schütz's social theory and everyday life experiences. The subsequent section explores Schütz's inquiry into the objectivity of the lifeworld in everyday experiences. The third section delves into the significance and challenges faced by individuals with mental disorders in their daily lives. The final section introduces the concept of insanity policy, highlighting potential avenues for health professionals and policymakers to integrate the everyday experiences of people with mental disorders into mental healthcare. Special attention is given to differentiating between care in everyday life and the everyday life of care.
Estereótipos de gênero nas disputas por representação política de mulheres
Authors: Berger Pereira Rafaela
Published: August 2024

O objetivo deste trabalho é investigar a mobilização dos estereótipos de gênero nas campanhas eleitorais de mulheres no Brasil. A principal contribuição do estudo consiste na compreensão dos estereótipos de gênero como variáveis que operam de diferentes maneiras conforme as etapas das carreiras políticas de mulheres. A partir da hipótese de que os estereótipos de gênero funcionam como estratégias de persuasão eleitoral, a pesquisa estuda o Horário Gratuito de Propaganda Eleitoral (HGPE) das candidatas competitivas a governos estaduais nas Eleições de 2022. São elas: Fátima Bezerra (PT), reeleita governadora do Rio Grande do Norte, Raquel Lyra (PSDB) e Marília Arraes (SOLIDARIEDADE), que disputaram em Pernambuco o primeiro segundo turno da história da política brasileira entre duas mulheres para um governo estadual. A abordagem metodológica utilizada é qualitativa e a técnica aplicada para a composição do banco de dados parte da decupagem do HGPE em segmentos classificados por categorias temáticas. A análise dos segmentos, por sua vez, é orientada pela seguinte questão: Em que medida estereótipos de gênero são mobilizados no HGPE das candidatas? Para fins de ilustração dos estereótipos e embasamento das proposições analíticas, a pesquisa utiliza imagens e transcrições do conteúdo transmitido nos programas do HGPE.
Motoristas profissionais nas plataformas de frete e representatividade sindical
Authors: Rodrigues da Silva Mariane Cristina , Machado Sidnei
Published: August 2024

A malha rodoviária brasileira é a principal responsável pelo escoamento de produtos no Brasil, sendo que o transporte rodoviário de cargas é realizado expressivamente pelo caminhoneiro, que integra categoria profissional diferenciada como motorista profissional, seja empregado ou autônomo. Dentre as novas formas de organização do trabalho impulsionadas pelo avanço tecnológico destaca-se a atuação de plataformas digitais no Brasil no transporte rodoviário de cargas, como a FreteBras e a TruckPad, conectando motoristas autônomos à transportadoras. Isto posto, o objetivo geral deste estudo é analisar quais as possíveis dificuldades enfrentadas pelos motoristas plataformizados no que tange aos direitos sindicais, considerando as singularidades inerentes ao trabalho organizado por plataformas e a ausência de regulação específica. Como hipótese inicial, tem-se que as ações dos sindicatos, especialmente no que diz respeito à representatividade sindical, revestem de legitimidade a atuação coletiva dos trabalhadores na reivindicação de seus direitos, mas ainda persistem desafios à plena liberdade sindical. Como procedimentos metodológicos, destacam-se a pesquisa bibliográfica e documental.
A formação de docentes da educação básica nas fronteiras das universidades, sistemas de ensino e escolas (1970-2015)
Authors: Fiorelli Silva Ileizi
Published: August 2024

Este artigo reflete as configurações das fronteiras entre as ciências e as escolas, por meio do estudo das políticas de formação de docentes no Brasil após 1996. Perceber as fronteiras entre escola e universidade ajuda a entender a organização da formação de docentes para a Educação Básica. A reflexão guiou-se desde a seguinte questão: quais as principais mudanças após a Lei de Diretrizes e Base da Educação (LDB) de 1996 na formação e na carreira de docentes da Educação Básica? Essas políticas alteraram o padrão de relação entre universidades e escolas? Argumentamos que na formação, houve significativas redefinições nessas fronteiras decorrentes: da criação da Diretoria de Formação de Docentes da Educação Básica na Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES), em 2007/2012; da criação de programas como o PIBID-Programa Interinstitucional de Bolsas de Iniciação à Docência; na carreira docente, destacamos: a criação do Fundo de Manutenção e Desenvolvimento do Ensino Fundamental e de Valorização do Magistério (FUNDEF), em 1996 e do Fundo de Manutenção e Desenvolvimento da Educação Básica e de Valorização dos Profissionais da Educação (FUNDEB), em 2007 e a Lei do Piso Nacional do Magistério, em 2008. As diretrizes de organização dos cursos de licenciatura em dois momentos de mudanças, em 2002 e em 2015, produziram novas experiências de organização de
Velhices e memórias: construindo um diálogo com os textos autobiográficos de Norberto Bobbio
Authors: M. Zorzanelo; J.Nishijima Camila e Camila
Published: August 2024

A presente proposta se inscreve no campo dos estudos sobre autobiografias e trajetórias intelectuais. O foco é a produção de Norberto Bobbio, pensador italiano que nasceu em Turim, em 1909, e morreu no mesmo local em 2004, foi, portanto, um nonagenário. Em sua velhice, escreveu duas obras autobiográficas: Diário de um século e O tempo da memória. Esses livros foram responsáveis por constituir e reconstituir a vida de Bobbio como pensador, escritor, professor e, em raros momentos, como filho, esposo e pai. Em ambas as obras, o autor narra incansavelmente sua vida profissional e política, reservando espaços para a vida pessoal apenas em circunstâncias excepcionais. Com base nas autobiografias de Bobbio, em estudos que abordam a importância das autobiografias na reflexão sobre a produção do pensamento social, nas pesquisas sobre velhice, gênero e memória, descrevemos e analisamos os marcadores sociais de geração e de gênero nos escritos autobiográficos do autor. Mapeamos, ainda, a relação do pensador com a militância antifascista, sua atividade docente, a articulação entre
Comunicação, política de saúde e acesso à informação: um estudo de caso do impacto das campanhas do Ministério da Saúde de 2015-2021
Authors: Saori Teixeira Jackeline , Henrique Moura Leite Ghael
Published: August 2024

As políticas de saúde brasileiras adotam desde o final do século XIX e início do XX o modelo “campanhista”, em que políticas sanitárias eram desenvolvidas para a erradicação de doenças pontuais através da realização de campanhas. A partir de mudanças no Departamento Nacional de Saúde Pública, nos anos de 1920, foi introduzida a propaganda e educação sanitária na técnica rotineira de ação na política de saúde. Nas décadas seguintes, as concepções de comunicação estiveram sempre presentes na modelagem das políticas públicas de saúde, particularmente nas que supunham uma intervenção direta sobre os costumes e práticas da população. Deste modo, e por diversos caminhos, chegamos ao tempo presente, com as políticas de saúde sendo atravessadas pelo discurso do direito à informação e à comunicação como indissociável do direito à saúde. Contudo, cabe saber em que medida há relação entre comunicação e política pública; e, caso positivo, de que maneira é possível avaliar o efeito de uma política pública nesses moldes. Com esse fim, a presente pesquisa utiliza-se das campanhas realizadas pelo Ministério da Saúde relacionadas às seguintes doenças: I) Arboviroses; II) Câncer; III) Coronavírus, IV) Gripe; V) Hanseníase, Verminoses ou Tracoma; VI) Hepatites Virais; VII) IST; VIII) Tuberculose. O trabalho pretende avaliar o impacto que essas peças de comunicação do Ministério da Saúde têm na busca por informação da população, especificamente, os pedidos de acesso à informação. A análise é realizada com base em testes estatísticos que cruzam a busca de informação via Lei de Acesso à Informação, trabalhando com um corpus de 26.383 solicitações do período de julho de 2015 a junho de 2021, tentando compreender qual o impacto durante o período vigente de cada uma das campanhas estabelecidas. Para tal análise, foi desenvolvido um dicionário de termos através da seleção de amostra estatisticamente significativa de 3603 pedidos, o que representa intervalo de confiança de 99% e margem de erro de 2%. Com base no dicionário, a análise se dá de forma automatizada utilizando a linguagem de programação Python, seguida por uma análise estatística para verificar a alteração na frequência de pedidos no período da campanha respectiva.
Kant e a Estrutura do Conhecimento Intuitivo
Authors: Silva Felipe Cardoso
Published: August 2024

Nesse artigo, elabora-se uma interpretação sobre a estrutura do conhecimento intuitivo e sua relação com a noção de forma lógica. Em linhas gerais, propõe-se que o conhecimento intuitivo é estruturado segundo a relação de intuições parciais coordenadas e sintetizadas e que ele se faz presente, na forma lógica do juízo, pela representação x. Não obstante, como as intuições parciais que compõem a representação x correspondem ao conteúdo dos conceitos, a lógica deve abstrair dele, mas não da própria referência, para se constituir enquanto ciência.
O desenvolvimento do conceito de "insight moral" na reflexão prática kantiana
Authors: Bichir Gabriel
Published: August 2024

Neste trabalho, passamos pelos três momentos centrais da reflexão prática kantiana (a terceira antinomia da dialética transcendental, a Fundamentação da Metafísica dos Costumes e o início da segunda Crítica) tendo como fio condutor o conceito de “insight moral”. Nosso objetivo é tanto negativo como positivo: em primeiro lugar, desconstruir a visão de que Kant teria recaído no dogmatismo na KpV devido ao conceito de “fato da razão”, que oferece evidência imediata da lei moral; em segundo lugar, mostrar que houve um amadurecimento na reflexão kantiana que o levou à constatação decisiva de que uma dedução nos moldes da KrV seria inadequada para o campo da razão prática. Com efeito, Kant reconhece ao longo de seu percurso intelectual que o “insight moral” exige um novo tipo de abordagem, que começa a se delinear na Fundamentação e só adquire sua formulação definitiva na segunda Crítica.
Early Proterozoic Gold Mineralization, Alteration Assemblages, and Geochemistry of the Huron-Montezuma Prospect, Yavapai County, Arizona
Authors: O'Hara Patrick F.
Published: August 2024

Metavolcanic and metasedimentary rocks of the Yavapai Series (Anderson and Creasey, 1958) crop out within the area described in this study. These rocks were originally subdivided into the Ash Creek Group and Alder Group (Anderson and Blacet, 1972). Isotopic data led Anderson and others (1971) to replace the name Alder Group with the Big Bug Group, which includes all the rocks of the Yavapai Series exposed in the Prescott-Jerome area.

The Big Bug Group is divided into three formations. From oldest to youngest they are: 1) Green Gulch Volcanics; 2) Spud Mountain Volcanics; and 3) Iron King Volcanics (Anderson and Silver, 1976). The Green Gulch Volcanics are not present in the area of this study and will not be discussed. The thickness of the Big Bug Group cannot be measured with confidence because of the probability that unrecognized small folds on the flanks of major folds duplicate the section, and because of probable thinning and thickening of units during deformation (Anderson and Blacet, 1972c).

The Iron King Volcanics are composed of a thick sequence of metamorphosed, pillowed and amygdaloidal andesitic and basaltic flows. Locally the Iron King contains thin interbeds of metamorphosed rhyolitic tuff and flows units. The youngest part of the Iron King is a mixed metatuff of andesitic to rhyolitic composition that crops out in the trough of an overturned syncline.

The Iron King Volcanics have been informally subdivided into members (O'Hara, 1981; unpublished map) in order to facilitate mapping for industry. The area encompassing the Montezuma, Swindler
Geochemistry of Early Proterozoic Felsic Volcanic Rocks Associated With Gold Mineralization at the Bell Ranch Prospect, Yavapai County, Arizona
Authors: O'Hara Patrick F.
Published: August 2024

During 1983, one hundred-sixteen samples were collected at the Bell Ranch prospect and analyzed for major elements plus zirconium, gold, silver, arsenic, antimony, mercury, copper, lead, and zinc. Thirty-eight samples were collected from rocks interpreted to have a felsic volcanic protolith. These geochemical data are part of a regional study of Early Proterozoic hydrothermal systems associated with strata-bound mineralization. The regional study includes lithologic and alteration mapping as well as analysis of more than 1,300 geochemical samples from eleven properties. The original purpose of the study was to classify polymetallic massive sulfide types empirically and to derive generative models of the hydrothermal-geological environment associated with mineralization. During 1983, two gold-bearing, base-metal-poor hydrothermal systems were included in the database.
Geology and Gold Mineralization at the Early Proterozoic Bell Ranch Prospect, Yavapai County, Arizona
Authors: Swan Monte M.
Published: August 2024

The Bell Ranch prospect is 5 km southeast of the Iron King massive sulfide deposit in the Agua Fria metallic mineral district. The prospect is strata-bound, exhalative in nature, and syngenetic with submarine volcanic and sedimentary strata of the Proterozoic Yavapai Series (1750 – 1780 Ma). In this region the Yavapai Series is characterized by greenschist grade metamorphism, steeply plunging penetrative folds, and steeply dipping foliation. The rocks hosting the prospect are distal (1.5 km) to a rhyolite dome to the north, but may be proximal to hydrothermal vents associated with growth faults at the prospect.
Precious Metal Contents of Proterozoic Massive Sulfide Deposits in Arizona
Authors: Dewitt Ed
Published: August 2024

1.65 to 1.78 b.y.-old volcanogenlc massive sulfide deposits that are related to centers of rhyolitic activity in central Arizona were initially mined for enriched gold and silver contents of oxidized ores. Although the precious metal contents of unoxidized (protore) ores are considerably lower than those of oxidized counterparts, many unoxidized deposits today would be considered of economic value only because of their gold and silver, not just for their base metals.

Massive sulfide deposits in Arizona are located, from west to east, in the Hualapai, Bagdad, Mayer-Prescott, Jerome, and Payson areas. Production statistics for the first four areas indicate that gold grades in the oxidized ores ranged from 1.1 to 0.2 oz/ton, and in the protore from 0.7 to 0.001 oz/ton. Silver grades in the oxidized ores ranged from 8 to 3 oz/ton, and in the protore from 4.5 to 0.2 oz/ton. Total silver/gold ratios varied from 600 to 15. Gold and silver grades were highest in the Mayer-Prescott area (0.068 oz Au; 2.37 oz Ag), and decreased in the Jerome (0.043 oz Au; 1.55 oz Ag), Hualapai (0.004 oz Au; 0.61 oz Ag), and Bagdad areas (0.002 oz Au; 0.39 oz Ag). This spatial variation of precious metal grades is believed to be related to the duration of volcanism and type of associated volcanic rocks in the four areas; the variation suggests that gold and silver mineralization was controlled by magma chemistry and evolution.

Precious metal contents appear to be independent of the overall copper, lead, or zinc grade
Stratigraphy of the Mississippian Leadville Dolomite, Gilman to Leadville, Colorado
Authors: Beaty David W. , Johansing Robert J. , Thompson Tommy B.
Published: August 2024

The stratigraphy of the Leadville Dolomite has been much more completely characterized than previously possible through study of more than 50 drill cores in the area between Leadville and Gilman, Colorado. Data from these cores, supplemented with literature descriptions and limited outcrop observations, leads to three conclusions. First, there are three major unconformities associated with the Leadville (M-l through M-3 in order of decreasing age). M-l and M-3 are at the base and top of the Leadville, respectively; M-2 is within the Leadville. Two of these unconformities (M-2 and M-3) are very well developed throughout the Leadville-Gilman area, and have been recognized in the surrounding region; M-1 is less well developed and/or of more local extent. The M-2 surface is locally associated with distinctive lithologies (pink breccia at Gilman, black shale at Mt. Sherman) which form critical marker beds. Second, a well- defined lithostratigraphy can be identified by classifying the dolostones of the Leadville on the basis of mean dolomite grain size. The number of beds at each locality is typically 10-15, and eight of these beds can be consistently traced throughout the Gilman-Leadville area. Third, the definition of the Castle Butte and Red Cliff Members of the Leadville proposed by Nadeau (1971) is ambiguous, and has led to inconsistent results when applied away from his reference sections.
The Black Cloud Story
Authors: Smith Douglas M.
Published: August 2024

The discovery of the Black Cloud, mine, in Leadville, Colorado, had its beginning in the purchase of two small mines by a Philadelphia lace merchant and was achieved through, the combined efforts of the engineering and geological staffs of two major mining companies, Newmont and ASARCO. The story behind tine discovery begins in iMladelphia early in 1881 with the 53-year-old owner of a prosperous lace and embroidery business. Meyer Guggenheim knew nothing of mines and had never traveled west of the Mississippi River. He had acquired a fortune of a million dollars from various businesses and was responsible for a maturing family of seven sons. For $5,000 he purchased a one-half interest in two lackluster lead-silver mines located in California Gulch near Leadville, Colorado. Mining began in Leadville with a gold strike in 1859 and had recently boomed with, the discovery of rich Pb-Ag carbonate ores. Production of gold, silver, and lead from the district torough the end of 1880 totaled more than $35.7 million, but little of this had come from Mayer Guggenheim's mines, the A.Y. and the Minnie. During the months following his purchase, Guggenheim invested nearly $70,000 in dewatering, sinking new shafts, and -underground development, until in August, when his faith in mining investments surely must have then near collapse, he received word of a rich strike at the A.Y. By 1888 the A.Y. and the Minnie were earning him about $750,000 a year. Prior to their exhaustion in 1902 and eventual sale, the two mines netted the Guggenheim family over $15 million. This second fortune enabled them to build one of the greatest mining empires the world has known. From this beginning evolved three corporations which proved to the major forces in the minerals industry of the Western Hemisphere during the Twentieth Century: The American Smelting and Refining Company (now ASARCO Incorporated), Guggenheim Brothers (discoverer of Chuquicamata, El Salvador, and other important deposits), and the Kennecott Copper Corporation.
Geology of the Pea Ridge Mine (Field Trip Stop No. 1)
Authors: Marikos Mark A. , Nuelle Laurence M. , Seeger Cheryl M.
Published: August 2024

The Pea Ridge deposit, a tabular non-titaniferous iron oxide-apatite stock, discordantly cuts Middle Proterozoic felsic volcanic rocks and amphibole-pyroxene rock. The stock, in turn, is cut by mafic and felsic dikes and breccia pipes. Late stage hydrothermal fluids altered some magnetite to hematite and deposited REE and gangue minerals in breccia interstices and veins.
The Mineralogy of the Boss-Bixby, Missouri Copper-Iron-Cobalt Deposit and a Comparison to the Olympic Dam Deposit at Roxby Downs, South Australia
Authors: Hagni Richard D. , Brandom Robert T.
Published: August 2024

An ore microscopic examination of 137 core samples collected from 24 drill holes at the Boss-Bixby (also known as Boss) deposit show that it consists of 30 minerals (Brandom and Hagni, 1987; Brandom, 1989). A comparison of the mineralogical study of Olympic Dam as reported by Roberts and Hudson (1983) shows many similarities (Brandom and Hagni, 1985). The similarities were further investigated by an ore microscopic examination of selected ore specimens from Olympic Dam (Hagni and Brandom, 1988; Hagni and Brandom, 1989). Sims et al. (1987) have discussed the potential for Olympic Dam-type deposits in the Midcontinent based upon the geotectonic and igneous settings.
Geological Overview of the Southern St. Francois Mountains, Missouri
Authors: Max Brown v.
Published: August 2024

The exposed igneous rocks in the st.Francois Mountains are part of the Eastern Granite-Rhyolite Province formed between 1480 and 1440 Ma (Bickford and Mose, 1975; Bickford and others, 1981; Thomas and others, 1984; Nelson and DePaolo, 1985). This Precambrian window in the midcontinent consists of granitic plutons in the northeast and predominantly rhyolitic volcanics (with minor intermediate volcanics and mafic dikes and sills) to the west and south (Fig. 1; Tolman and Robertson, 1969). These rocks are intrepreted as a volcanic pile that was intruded by comagmatic plutons, and later tilted to the southwest and beveled by erosion; hence rocks are generally younger to the west (Allingham, 1960; Snyder and Wagner, 1961; Sides, 1978; this study). These exposures exhibit variously dissected levels from tops of thick ash-flow sheets through subcaldera plutons. Ring intrusions and central plutons adjacent to this exposed terrane are also known from the subsurface (Kisvarsanyi, 1981).
The Caledonia Native Copper Mine, Michigan
Authors: Bornhorst Theodore J. , Whiteman Richard C.
Published: August 2024

The Caledonia Mine, owned by Red Metal Explorations, is located near Mass, Michigan (Fig. 1). The Caledonia Mine is southwest of the Mass and Adventure Mines (Fig. 2) within an area of native copper deposits outside of the major deposits of the Keweenaw Peninsula native copper district, some 40 km southwest of a major producer, the Baltic Mine (see Fig. 3 of Bornhorst, this volume). The mines of the Mass area worked the Evergreen, Ogima, Butler, Mass, South Knowlton and Knowlton mineralized flow top lodes, termed the Evergreen Series, over a total strike length of about 5 km. The Evergreen Series produced about 33 million kg of copper at grades between 0.5 and 1.25 % (Weege and Pollack, 1971) . The Mass Mine, largest producer in the area, produced 23 million kg of refined Cu while the Adventure Mine produced 5 million kg from 1851 to 1923 (Butler and Burbank, 1929). The Butler, Evergreen, and Knowlton lodes were the most productive of the flow tops; the Butler was the largest. The other flow tops yielded only small amounts of copper.
Geology of Keweenawan Supergroup Rocks Near the Porcupine Mountains, Ontonagon and Gogebic Counties, Michigan
Authors: Cannon William F. , Nicholson Suzanne W. , Hedqman Cheryl A. , Woodruff Laurel G. , Schulz Klaus J.
Published: August 2024

This field trip examines the geology of rocks of the Keweenawan Supergroup (1.1 Ga) and related intrusive rocks of the Midcontinent rift system (MRS) in the western part of the northern peninsula of Michigan. The combination of stops includes all formations of the Keweenawan Supergroup in this region. Examination of all described localities requires more than a single day and participants are encouraged to use this guidebook on their own to supplement the localities that will be visited on our one-day trip. Stops are numbered in stratigraphic order, from oldest to youngest, not in the order in which they will be visited.
Overview of the Mclaughlin Precious Metal Deposit, Napa and Yolo Counties, Northern California
Authors: Tosdal Richard M. , Enderlin Dean A. , Nelson Gordon C. , Lehrman Norman J.
Published: August 2024

A late Pliocene and Pleistocene hot-spring deposit consisting of sinter terraces underlain by veins is the site of the McLaughlin Mine in northern California. The deposit is localized along the contact between hanging wall mudstone of the Upper Jurassic Knoxville Formation (basal formation of the Upper Jurassic and Cretaceous Great Valley sequence) and serpentinized ultramafic and mafic rocks of the Middle Jurassic Coast Range ophiolite in the footwall. The Stony Creek fault separates the two units, and dips moderately northeasterly. Pliocene basaltic andesite and volcaniclastic rocks unconformably overlie the sedimentary and ophiolitic rocks in the mine area. These rocks intruded as sills to shallow depths or erupted after phreatomagmatic explosions from small volcanic centers. Magmatism was also localized along the Stony Creek fault. The volcanic rocks are part of the older phase of the Clear Lake Volcanics, which formed in a Pliocene to Holocene volcanic field that lay mostly to the west and northwest.

The deposit consists of two epithermal orebodies, the north and south orebodies, which are connected by a narrow 2one of mineralization. The oldest hydrothermal event recognized in the deposit was adularization of the hanging wall mudstone and silicification of the footwall serpentinite. Alteration formed a roughly tabular body that is discontinuous along the Stony Creek fault. Basaltic andesite sills, plugs, and flows are propylitized and locally argillized. Precious metals are present in opal, chalcedony, and quartz veins that cut brittle rocks, including altered rocks, basaltic andesites, and tabular lithons present in the footwall serpentinite. The south
Mclaughlin Gold and KnoxVille Mercury Deposits
Authors: Rytuba James J. , Enderlin Dean A. , Donnelly-Nolan Julie M. , McLaughlin Robert
Published: August 2024

This tour begins in Clearlake Highlands and proceeds to the Homestake Mining Company’s McLaughlin Mine and the Knoxville mercury deposit. The route for the trip is shown in Figure 1.
Geology of the Tusc Deposit, Nevada
Authors: Doyle-Kunkel Micheline A.
Published: August 2024

The Tusc gold deposit is situated along the Carlin Trend of northeastern Nevada, within Eureka County, approximately 8 miles northwest of the town of Carlin. Tusc lies within the Maggie Creek Subdistrict, along the surface trace of the Good Hope fault approximately 1.5 miles northwest of the Gold Quarry deposit. A significant oxide gold reserve (826,780 troy ounces) is present at Tusc, disseminated in Paleozoic carbonate and siliciclastic rocks.

Two geologically dissimilar mineralized zones are recognized within the deposit: (1) the Structure zone, a highly sheared zone of anastomosing reverse faults within the Good Hope fault system, striking N40W, dipping 45-60 degrees NE, with gold primarily hosted in siliceous rocks; and, (2) the Main zone, a bedding plane/fracture-controlled dissemination of gold in the hanging wall of the Good Hope fault, hosted within decalcified carbonate rocks (Crouse and others, 1991).

Additional ore controls include a mineralized low-angle structure and mineral boundaries along the northwest-trending Seldom Seen and northeast-trending K-W and Copper King fault systems. Wallrock alteration and mineral deposition are spatially related to a zone of intense decalcification. Silicification along the Good Hope fault, some alunite veins, late argillization and supergene oxidation are also present (Arkell, 1991; Crouse and others, 1991).
Carlin Trend Geophysical Review
Authors: Wright James
Published: August 2024

A total of six (6) color images with overlays are located at the end of this paper. The color images; including aeromagnetic, gravity, and terrain data sets, are grouped to cover either the entire state of Nevada or a detailed area encompassing the Carlin Trend. State images are at 1:3,750,000 scale while the detailed images are at 1:750,000 scale. Both are annotated with UTM coordinates. Following the discussion are a number of references which address some of the specific features shown on the overlays or discussed in the text. These references as well contain extensive reference lists for additional information.
Gulf Coast Salt Dome Sulphur
Authors: Edwards A. F.
Published: August 2024

The salt domes of the Texas and Louisiana Gulf Coast have produced an incredible amount of wealth in the form of oil and gas, as well as native sulphur. This belt of domes is distinct from the domes in the interior salt basins (Fig. 1) which have not produced sulphur despite the common presence of cap rock that is similar to the host rock for the commercial sulphur concentrations.

Sulphur (the spelling used by the sulphur industry) is also known as brimstone from the Anglo Saxon byrn stone for burning stone and is referred to as the Queen of the industrial minerals. Sulphur is an essential requirement for the fertilizer and galvanizing industries and the amount used mirrors a country’s GNP, reflecting that a growing and robust economy consumes a lot of sulphur. A current summary of the sulphur industry is provided by Wessel (1994).

The Gulf Coast sulphur industry is a relatively young one and was pioneered by Herman Frasch who perfected his technique of Frasch sulphur production in 1902 using superheated water pumped into the sulphur-bearing formation through a nested casing string to melt sulphur and then recover it through an inner casing string (Fig. 2). The Frasch sulphur industry is young enough that the author has worked with geologists who personally knew Frasch.

From the outset of sulphur production, geologists attempted to explain the its origin and its distinctive occurrence in a salt dome cap rock section that consists of anhydrite and gypsum overlain by a vuggy
Geology of the Haile Gold Mine
Authors: Maddry John W. , Kilbey Thomas R.
Published: August 2024

The Haile gold mine is located in north-central South Carolina, approximately mid-way between Columbia, SC and Charlotte, NC, near Kershaw in Lancaster County (Figure 1).

The Haile gold mine has a long and colorful history. Gold was first discovered in 1827 or 1828 as placer in Haile Gold Mine Creek. The lode sources were discovered during the early years of placer mining and activity soon shifted to shallow open-pit and underground mining. The most productive periods of mining occurred between 1888-1908 and 1936-1942. Piedmont Mining Company resumed mining in 1985 and recovered 85,000 ounces of gold between April, 1985 and August 1991 when mining ceased. Total gold production from 1827 to 1991 is estimated at over 360,000 ounces (Speer and Maddry, 1992) mined from about eleven orebodies. The mine has also produced minor quantities of sulfur from pyrite and over 400,000 tons of Mineralite, a white clay-rich, industrial mineral product used mainly as a paint filler (Maddry and Speer, 1993).

Recent exploration by an Amax Gold Inc. and Piedmont Mining Co. joint venture has identified new gold reserves in six orebodies (Figure 2) that currently total 8,736,000 tons of proven and probable ore at an average grade of 0.089 ounces gold per ton (opt) or 780,000 ounces gold. These reserves use a variable grade cut-off of about 0.025 opt gold, and the waste to ore ratio is 5.61:1. Most of these reserves are contained within sulfide ore. The total gold resource, at the same cut-off, is 17,000,000 tons at an
Contrasting Siliceous Replacement Mineralization, East-Central Nevada
Authors: Barton Mark D. , Seedorff Eric , Ilchik Robert P. , Ghidotti Gregory
Published: August 2024

Fine-grained siliceous replacement of carbonate-bearing rocks (‘jasperoid’) occurs in most mineral districts in east -central Nevada. In many of these occurrences, jasperoid contains Au and(or) Ag and little or no base metals, although concentrations and ratios range markedly. Here we compare and contrast these systems based on the geological and geochemical characteristics of the siliceous rocks and, where present, associated igneous and other types of hydrothennally altered rocks. At issue are both the broad patterns of regional metallogeny and specific links between Carlin-type mineralization and other geologic phenomena. These results are based on our own work and published data.

Broadly, two end-members are distinguished: (1) silicification as an intermediate- to late-stage part of complex alteration associated with igneous centers, and (2) jasperoids lacking other associated alteration and having few or no associated igneous rocks. Within this region, siliceous replacements are found with nearly all metallic(± magmatic) suites. The principal types are summarized in Table 1 and localities with selected characteristics are shown in Figure 1.

Igneous-related systems have well-developed time-space patterns of high-temperature proximal alteration overprinted and surrounded by lower temperature alteration assemblages. Jasperoids and other siliceous bodies are prominent in the latter suite, showing considerable differences in their mineralogical, geochemical, and textural characteristics. Pronounced zoning occurs over distances of a few hundred meters to no more than a few kilometers. These systems also exhibit strong correlations between style and composition of alteration, the composition of the igneous rocks, and associated metals (Fig. 1 ). Igneous-related systems show a pronounced
Metallogeny of the Central Slovakian Volcanic Field
Authors: Lexa Jaroslav
Published: August 2024

The essential structural aspects and paleovolcanic reconstruction of the Central Slovakia Volcanic Field has been discussed by Konecný et al., (1995); their paper is reprinted in this volume. Volcanic rocks, especially central volcanic zones including subvolcanic intrusive complexes, host a number of mineral deposits and occurrences. Fourteen types of mineralization have been distinguished in this region (Fig. 1), including:Magnetite skarn deposits and occurences related to contacts of the granodiorite subvolcanic intrusion with Triassic limestones and dolomites.Porphyry/skarn copper ± molybdenum or gold deposits and occurrences related to granodiorite porphyry stocks and dike clusters emplaced in Triassic carbonate rocks.Porphyry copper ± molybdenum mineralogical occurrences related to diorite to monzodiorite stocks.Base metal stockwork/disseminated mineralization related to granodiorite and diorite porphyry intrusions.Barren high-sulfidation alteration systems related variably to granodiorite, diorite, monzodiorite, and granodiorite porphyry intrusions (stocks), possibly representing the tops of porphyry-type hydrothermal systems.A high-sulfidation epithermal gold deposit and occurrences related to diorite/monzodiorite stocks, showing rudimentary porphyry type mineralization at depth.A low-sulfidation epithermal gold deposit related to granodiorite subvolcanic intrusion, along with base metal stockwork/disseminated mineralization.Low-sulfidation epithermal veins situated in central zones of older stratovolcanoes; however, these are directly related to local horst uplifts and late-stage rhyolitic extrusive domes and dikes. On the basis of metal contents there are base metal, silver — base metal and precious metal epithermal veins. Where these veins coexist there is a zonation in metals.Base-metal replacement deposit and occurrences adjacent to base-metal epithermal veins in Triassic carbonate rocks.Precious-metal replacement
The Šobov High-Sulfidation System
Authors: Lexa Jaroslav , Štohl Jaroslav , Žáková Eva
Published: August 2024

The Šobov high-sulfidation epithermal deposit is 2 km north of Banská Štiavnica, and formed from the oldest hydrothermal system of the Štiavnica stratovolcano. Its metasomatic quartzite core is quarried from an open pit as the raw material for production of refractory bricks in a nearby factory. Exploration by drilling and underground galleries proved reserves of 6.2 million tons of 96 — 97 % SiO2, 1–1,5% Fe2O3, 0.2 – 0.3 % A12O3 and 0.7–1.1% TiO2 (Polák, 1960). At present the industrial reserves of the deposit are 5.3 million tons at 97.8 % SiO2, 0.6% Fe2O3 and 0.84% Al2O3 + TiO2 (Balances of reserves at exclusive mineral deposits of Slovakia, 1996). Local accumulations of agalmatolite (nowadays pyrophyllite) and dillnite (nowadays zunyite) in karstic cavities of adjacent carbonate rocks on the northern side of the deposit were exploited during the 19th century. Exploitation of the deposit since the early 1960s has eventually created environmental problems owing to dumping of pyrite-rich argillic-altered rock on large heaps and subsequent weathering. The immediate risk has been reduced by a drainage system, which takes acid waters to abandoned mines, where they are diluted by ground waters.

The quartzite of the deposit has been for a long time a matter of disputes, being variably interpreted as sedimentary Triassic quartzite affected by recrystallization (e.g., Lipoid, 1867; Szabó, 1891), or hydrothermal metasomatic quartzite (e.g., Böckh, 1901). The hydrothermal origin was accepted also by Polák (1960), who conducted detailed exploration by drilling and galleries to calculate the reserves for future exploitation.
Field Stop
Authors: Murakami Hiroyasu , Feebrey Craig A.
Published: August 2024

Turn off the main road and move toward field stop 1. Participants can observe variations in alteration starting with patchy occurrences of zone I, followed by zone II, and finally by zone iii assemblages, representing a progressive increase in paleohydrothermal fluid temperatures associated with mineralization. Field stop 1 is located above the southern vein system in the vicinity of Takasuka vein and within zone III alteration, which is characterized by the assemblage quartz + interstratified illite/smectite ± kaolinite (Fig. 1). Analyses from these veins have been as high as 27.7 g/t, and fluid inclusions from the same veins indicate temperatures of about 200° to 250°C (figs. 4 and 5, Murakami and Feebrey, 2001). Also at this location silicified Nagano Formation rocks essentially cap and have preserved mineralization. Sedimentary bedding planes of the Nagano Formation are also still evident in some localities (Figs. 2 and 3).

Also of particular interest in terms of exploration for this style of mineralization is the excellent correspondence between the distribution of mapped zone III alteration, characterized by interstratified illite/smectite, and the area of extremely high K counts obtained during a high-resolu- tion airborne radiometric survey. Points of interest include the amount of vegetation that exists and covers zone III alteration, indicating that significant anomalies are still evident in areas with moderate to high vegetation cover.
Field Stop
Authors: Hayashi Toshihiko
Published: August 2024

The open pit of the Iriki kaolin mine is located on the western flank of Imuta volcano (see route map, day 3-1) and produced filler and coating material for paper until February 2001. Now mining from the pit has stopped but still maintains production and sales by importing material from China, which is then treated at the mine.

The kaolin zone is white and light gray and consists of kaoli- nite, dickite, quartz, and minor opal C-T (Fujii et al., 1989; Fig. 1). The smectite zone is yellow to pale green and consists of smectite, kaolinite, opal, and minor amounts of alunite.