cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.1594/ieda/100589
title: PGE and Chalcophile element concentrations in peridotitic sulfides from the St. Elena ophiolite, Costa Rica

description: This dataset presents in situ (LA-ICPMS; down to a 10 micron beam size) major, minor, PGEs and  chalcophile elements on sulfides from five partially serpentinized peridotites from the St. Elena ophiolite, Costa Rica.  PGE-Re concentrations in sulfides (dominant petlandites) are highly variable, ranging from 1 – 100,000 times that of primitive mantle (PM).  PM-normalized PGE-Re patterns in the sulfides are dominated by strong Pt depletions relative to Os, Ir, Ru and Pd.   Pb concentrations average around 2.7 ppm.
description: Holm, J., M. Bizimis, E. Schwarzenbach, D. Foustoukos, C. Frisby, A. Brandon, and E. Gazel (2015), Platinum group and chalcophile element systematics of serpentinized peridotites from the St. Elena ophiolite in Costa Rica, in AGU Fall Meeting, pp. V53B-3136, San Francisco, URL: https://agu.confex.com/agu/fm15/meetingapp.cgi/Paper/73156.
DOI: 10.1594/ieda/100587
title: XRF major and trace element compositions of lavas sampled by the Hawaiian Scientific Drilling Project (HSDP)

description: XRF major and trace element analyses of Mauna Loa and Mauna Kea lavas sampled by the pilot hole of the Hawaii Scientific Drilling Project (HSDP) and the subsequent 3,500m primary hole.
description: Rhodes J. M. (1996) The Geochemical Stratigraphy of lava flows sampled by the Hawaii Scientific Drilling Project, J.Geopys. Res., 101,  11,729-11,746.
Rhodes, J. M. and Vollinger, M. J. (2004)	Composition of basaltic lavas sampled by phase-2 of the Hawaii Scientific Drilling Project: Geochemical stratigraphy and magma types, Geochem. Geophys. Geosyst., 5, Q03G13, doi:10.1029/2002GC000434. 
Rhodes, J.M., Huang, S., Frey, F.A., Pringle, M.  and Xu, W. (2012)Compositional Diversity of Lavas Recovered by the Hawaii Scientific Drilling Project: Has the Core Sampled Lavas from Multiple Volcanoes and from both Peridotite and Pyroxenite Sources?  Geochem. Geophys. Geosyst.  13.  QO3014 doi:10.1029/2011GC003812.
DOI: 10.1594/ieda/100588
title: XRF geochemistry of submarine lavas from Mauna Loa Volcano, Hawaii

description: XRF geochemistry of submarine lavas from Mauna Loa Volcano, Hawaii. The data cover about 700 ka of Mauna Loa's magmatic history and include samples from the SW rift zone, the Kahuku submarine landslide scarp, landslide deposits, submarine radial vents and samples from the shallow volcanic slope (TN151, MW9902, KK83-07-25)
description: Rhodes J. M. (2015) Major element and isotopic variations in Mauna Loa magmas over 600 ka: Implications for magma generation and source lithology as Mauna Loa transits the Hawaiian plume, Rhodes, J. M., Geol. Soc. Amer. Mem.  208, 59-78.
DOI: 10.1594/ieda/100586
title: Changes in northeast African hydrology and vegetation associated with Pliocene-Pleistocene sapropel cycles (ODP Leg 160)

description: East African climate change since the late Miocene consisted of persistent shorter-term, orbital-scale wet-dry cycles superimposed upon a long-term trend towards more open, grassy landscapes. Either or both of these modes of paleoclimate variability may have influenced East African mammalian evolution, yet the interrelationship between these secular and orbital paleoclimate signals remains poorly understood.  Here, we explore whether the long-term secular climate change was accompanied by significant changes at the orbital-scale as well. We develop Northeast African hydroclimate and vegetation proxy data for two 100 kyr-duration windows near 3.05 Ma and 1.75 Ma at ODP Site 967 in the eastern Mediterranean basin where sedimentation is dominated by eastern Sahara dust input and Nile River runoff. These two windows were selected because they have comparable orbital configurations and bracket an important increase in East African C4 grasslands.  We conducted high-resolution (2.5 kyr sampling) multiproxy biomarker, H- and C-isotopic analyses of plant waxes and lignin phenols to document orbital-scale changes in hydrology, vegetation, and woody cover for these to intervals. Both intervals are dominated by large-amplitude, precession-scale (~20-kyr) changes in Northeast African vegetation and rainfall/runoff.  The δ13Cwax values and lignin phenol composition record a variable but consistently C4 grass-dominated ecosystem for both intervals (50-80% C4). Precessional δDwax cycles were approximately 20-30‰ in peak-to-peak amplitude, comparable to other δDwax records of the early Holocene African humid period.  There were no significant differences in the means or variances of the δDwax or δ13Cwax data for the 3.05 Ma and 1.75 Ma intervals studied, suggesting that the paleohydrology and paleovegetation responses to precessional forcing were similar for these two periods. These results suggest that the eastern Sahara did not experience the significant increase in C4 vegetation that has been observed in East Africa over this time period. This observation is consistent with a proposed mechanism of East African climate change whereby regional precipitation was reduced in response to the emergence of modern zonal tropical SST gradients between 3-2 Ma.
description: Rose, C., P.J. Polissar, J.E. Tierney, T. Filley and P.B. deMenocal, 2016. Changes in Northeast African Hydrology and Vegetation Associated with Pliocene-Pleistocene Sapropel Cycles
Philosophical Transactions of the Royal Society B. in press
DOI: 10.1594/ieda/100585
title: Zircon U-Pb Geochronology: Volcanic and Plutonic Activity Near the Gulf of California Rift

description: This dataset provides a large body of zircon U-Pb crystallization ages that provide a chronology of volcanic and plutonic activity essential to understanding the details of the Neogene Gulf of California rift history.  Samples were collected from submerged continental crust within the rift by dredging and by use of a remotely operated vehicle (JASON). The submarine samples were supplemented by samples collected from a series of islands in the Gulf as well as samples from the edge of the Baja California mainland immediately adjacent to the Gulf.
DOI: 10.1594/ieda/100584
title: Electron microprobe analyses of Apollo 14 low-Ti green glasses from Lunar Samples 14047, 14049, 14301, 14307, and 14313

description: Major-element analyses of 190 low-Ti, picritic volcanic glasses from Lunar Samples 14047, 14049, 14301, 14307, and 14313 from the Apollo 14 landing site.
description: Delano, J.W. (1986) Pristine lunar glasses: Criteria, data, and implications. Proceedings of the 16th Lunar and Planetary Science Conference, J. Geophysical Research, Supplement, 91, B4, D201-D213.
DOI: 10.1594/ieda/100583
title: Major and Trace Elemental Analyses from South Pacific Gyre Basalt (IODP Expedition 329)

description: Bulk element analysis data on 43 basement basalt samples from South Pacific Gyre (SPG). Basement was drilled at three SPG sites on IODP expedition 329 in 2010. Rock samples were powdered and analyzed using ICP-ES and ICP-MS mainly for U, Th, and K concentrations.
description: Dzaugis, M. E., Spivack, A. J., Dunlea, A. G., Murray, R. W., & D'Hondt, S., (2016), "Radiolytic hydrogen production in the subseafloor basaltic aquifer." Frontiers in Microbiology, 7(76)
DOI: 10.1594/ieda/100580
title: Elemental OC, N, and Stable C Isotope Data from ODP167 (Cascadia)

description: Elemental OC, N and Stable C Isotope data from ODP167 (Cascadia), Sites 1019C and 1020B, measured to determine million-year scale influence of tectonics on organic carbon export and burial.
DOI: 10.1594/ieda/100581
title: Elemental OC, N, and Stable C Isotope Data from Hikurangi Margin (NZ)

description: Elemental OC, N, and Stable C Isotope for Hikurangi Margin (NZ), trough and turbidite sequences. To determine marine extent of terrestrial organic carbon signature.
DOI: 10.1594/ieda/100582
title: Isotopic ratios of Xe in gas from Victoriaquelle CO2 well (Eifel, Germany)

description: This dataset reports the isotopic composition of xenon in CO2-rich gases emitted in the Eifel volcanic region. Gas has been collected at the Victoriaquelle well. Xenon has been separated and subsequently analyzed by noble gas mass spectrometry.
DOI: 10.1594/ieda/100578
title: Dissolved sulfate concentration in marine sediment from Site NGHP-01-14A (Indian National Gas Hydrate Program Expedition)

description: Results of the Indian National Gas Hydrate Program Expedition. In 2008, an international partnership led by the Directorate General of Hydrocarbons (DGH) under the Ministry of Petroleum and Natural Gas (Government of India) and the U.S. Geological Survey (USGS) released the results of the most complex and comprehensive gas hydrate field venture yet conducted. We present here the dissolved sulfate concentration data for one of the sites (NGHP-01-14A) cored in the Krishna-Godavari basin.
description: Evan A. Solomon, Arthur J. Spivack, Miriam Kastner, Marta E. Torres and Gretchen Robertson (2014), Gas hydrate distribution and carbon sequestration through coupled microbial methanogenesis and silicate weathering in the Krishna-Godavari Basin, offshore India, Marine and Petroleum Geology 58: 233-255.
DOI: 10.1594/ieda/100579
title: Dissolved Inorganic Carbon (DIC) concentration in marine sediment from Site NGHP-01-14A (Indian National Gas Hydrate Program Expedition)

description: Results of the Indian National Gas Hydrate Program Expedition. In 2008, an international partnership led by the Directorate General of Hydrocarbons (DGH) under the Ministry of Petroleum and Natural Gas (Government of India) and the U.S. Geological Survey (USGS) released the results of the most complex and comprehensive gas hydrate field venture yet conducted. We present here the dissolved inorganic carbon (DIC) concentration data for one of the sites (NGHP-01-14A) cored in the Krishna-Godavari basin.
description: Evan A. Solomon, Arthur J. Spivack, Miriam Kastner, Marta E. Torres and Gretchen Robertson (2014), Gas hydrate distribution and carbon sequestration through coupled microbial methanogenesis and silicate weathering in the Krishna-Godavari Basin, offshore India, Marine and Petroleum Geology 58: 233-255.
DOI: 10.1594/ieda/100577
title: Elemental OC, N and Stable C Isotopes for IODP Expedition 341 (Southern Alaska Margin)

description: Elemental OC, N and Stable C Isotope for IODP Expedition 341 (Southern Alaska Margin)
description: Gulick, S.P.S., Jaeger, J.M., Mix, A.C., Asahi, H., Bahlburg, H., Belanger, C.L., Berbel, G.B.B., Childress, L., Cowan, E., Drab, L., Forwick, M., Fukumura, A., Ge, S., Gupta, S., et al., 2015. Mid-Pleistocene climate transition drives net mass loss from rapidly uplifting St. Elias Mountains, Alaska: Proceedings of the National Academy of Sciences, p. 1–6
DOI: 10.1594/ieda/100575
title: Geochemistry of fumarolic and bubbling gases from  El Chichón Volcano, Chiapas, Mexico

description: This dataset contains geochemical analyses of volcanic gases from fumarole fields and bubbling gas sources at El Chichon crater, Chiapas, Mexico. Geochemical analyses include H, C, O and S isotope analyses, headspace gases and dissolved chemical components. Samples were collected from May 1995 through January 1997, and also contains one gas sample collected after the 1982 eruption previously documented by Casadevall (1984).
description: Taran, Y., Fischer, T. P.,  Pokrovsky, B.,  Sano, Y.Aurora Armienta, M.,  Macias, J. L.(1997), "Geochemistry of the volcano-hydrothermal system of El Chichón Volcano, Chiapas, Mexico." Bulletin of Volcanology, 59:436-449
DOI: 10.1594/ieda/100576
title: Total organic carbon, total nitrogen, and stable organic carbon isotope analyses of samples from ODP Leg 174AX Bass River Site

description: This dataset contains geochemical analyses of samples from ODP Leg 174AX Bass River Site from across the Cretaceous-Paleogene Boundary. The dataset contains values for total organic carbon, total nitrogen, and organic carbon isotopes. The purpose of the dataset is to provide elemental data for carbon and nitrogen and organic carbon isotopic data at the Bass River site through the Cretaceous-Paleogene Boundary interval.
description: Esmeray-Senlet, S., Wright, J. D., Olsson, R. K., Miller, K. G., Browning, J. V., and Quan, T. M.,  (2015), "Evidence for reduced export productivity following the Cretaceous/Paleogene mass extinction." Paleoceanography, 30: 718-738.
DOI: 10.1594/ieda/100574
title: Whole rock major and trace element data, granitoids Dronning Maud Land (Antarctica)

description: This data set includes bulk rock major and trace element compositions of granite, monzonite, monzodiorite and syenite samples from Annandagstoppane (Archean Grunehogna Craton) and from Hochlinfjellet (Maud Belt) in western Dronning Maud Land.
description: Jennings ES, Marschall HR, Hawkesworth CJ, Storey CD (2011) "Characterisation of magma from zircon inclusions: apatite and biotite work well, feldspar less so." Geology, 39: 863–866

Marschall HR, Hawkesworth CJ, Storey CD, Dhuime B, Leat PT, Meyer HP, Tamm-Buckle S (2010) "The Annandagstoppane granite, East Antarctica: evidence for Archean intracrustal recycling in the Kaapvaal-Grunehogna Craton from zircon O and
Hf isotopes." Journal of Petrology, 51: 2277–2301
DOI: 10.1594/ieda/100573
title: The Geochemistry of Central American Volcanic Gas Condensates

description: This dataset is a collection of 132 gas condensates from fumaroles of the Central American volcanoes of Santiaguito, Fuego, Pacaya, Izalco, Cerro Negro and Arenal. Gas condensate samples were collected over a 5 year period August 1964-July 1969. Also includes analyses of ash and lava from eruptions in 1964-1969 in Central American volcanoes.
description: Stoiber, Richard E; Rose, William I, Jr., (1970) "The Geochemistry of Central American Volcanic Gas Condensates." Geological Society of America Bulletin, 10:2891-2912
DOI: 10.1594/ieda/100558
title: Regional variations in volatile composition: Isotopic evidence for carbonate recycling in the Central American Volcanic Arc

description: This data set contains geochemical and isotopic gas analyses of hydrothermal gases from fumaroles and hot springs from Everman volcano, Socorro Island, Mexico.
description: Taran, Y.A.; Fischer, T.P.; Cienfuegos, E.; Morales, P., (2002), "Geochemistry of hydrothermal fluids from an intraplate ocean island: Everman Volcano, Socorro Island, Mexico." Chemical Geology, 188: 51-63
DOI: 10.1594/ieda/100557
title: Geochemical and isotopic evidence for seawater contamination of the hydrothermal system of Taal Volcano, Luzon, the Philippines

description: This dataset contains geochemical and isotopic analyses of fumarole gases from Taal  Volcano, Phillipines. Data is presented for 2 samples from the main crater and 1 sample from the "frying pan" an area in which fumarole gases were discharging vigorously through water-saturated ground collected on October 28, 1995.
description: Delmelle P., Kusakabe M.,  Bernard  A., Fischer T., de Brouwer S. , del Mundo E., (1998),"Geochemical and isotopic evidence for seawater contamination of the hydrothermal system of Taal Volcano, Luzon, the Philippines."Bulletin of Volcanology, 59:562-576
DOI: 10.1594/ieda/100560
title: Chemical evolution of thermal waters and changes in the hydrothermal system of Papandayan volcano (West Java, Indonesia) after the November 2002 eruption

description: This dataset contains geochemical and isotopic analyses of volcanic gases from Papandayan volcano (West Java, Indonesia) after the November 2002 eruption.
description: Mazot Agnès, Bernard Alain, Fischer Tobias, Inguaggiato Salvatore, Sutawidjaja  Igan S. (2008), "Chemical evolution of thermal waters and changes in the hydrothermal system of Papandayan volcano (West Java, Indonesia) after the November 2002 eruption" Journal of Volcanology and Geothermal Research (178):276-286
DOI: 10.1594/ieda/100559
title: The effects of volatile recycling, degassing and crustal contamination on the helium and carbon geochemistry of hydrothermal fluids from the Southern Volcanic Zone of Chile

description: This data set contains geochemical analyses of hydrothermal gases from fumaroles, hot springs, and geothermal wells in the Central Southern Volcanic Zone (CSVZ) of Chile.
description: Ray Mary C.; Hilton, David R.; Muñoz, Jorge; Fischer, Tobias P.; Shaw, Alison M. (2008),"The effects of volatile recycling, degassing and crustal contamination on the helium
and carbon geochemistry of hydrothermal fluids from the Southern Volcanic Zone of Chile." Chemical Geology (188):38-49
DOI: 10.1594/ieda/100561
title: Massive and prolonged deep carbon emissions associated with continental rifting

description: A summary of diffuse CO2 Flux measurements, C isotope analyses and gas from soil emission analyses taken in the East Africa Rift System (EARS) in June-July 2014. Measurements were made along fault zones, hanging walls and footwalls in Kenya and Tanzania.
DOI: 10.1594/ieda/100568
title: Bulk sediment calcium concentration from Long Core Expedition KN195-03

description: The KN195-03 research cruise on board the R/V Knorr (Chief scientist Steven D’Hondt) took place in January-February 2009 and had as primary objective to test and refine quantitative models for the magnitude and geographic distribution of subseafloor biomass and organic-fueled subseafloor respiration. Sediment cores were taken at thirteen sites across the equatorial Pacific and the North Pacific Gyre. Knowledge of the chemical composition of the porewater and bulk sediment chemistry throughout the collected cores is fundamental to answer the driving research questions of this scientific expedition. We present here the bulk sediment calcium concentration data set measured by inductively coupled plasma mass spectrometry (ICP-MS) in the Murray lab at Boston University, MA.
DOI: 10.1594/ieda/100569
title: Bulk sediment magnesium concentration from Long Core Expedition KN195-03

description: The KN195-03 research cruise on board the R/V Knorr (Chief scientist Steven D’Hondt) took place in January-February 2009 and had as primary objective to test and refine quantitative models for the magnitude and geographic distribution of subseafloor biomass and organic-fueled subseafloor respiration. Sediment cores were taken at thirteen sites across the equatorial Pacific and the North Pacific Gyre. Knowledge of the chemical composition of the porewater and bulk sediment chemistry throughout the collected cores is fundamental to answer the driving research questions of this scientific expedition. We present here the bulk sediment magnesium concentration data set measured by inductively coupled plasma mass spectrometry (ICP-MS) in the Murray lab at Boston University, MA.
DOI: 10.15468/dl.6y7sxa
title: Occurrence Download

description: A dataset containing 29906 species occurrences available in GBIF matching the query:
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 "SpeciesKey is Hippodamia variegata (Goeze, 1777)",
 "Year is greater than or equal to 2004",
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 The dataset includes 29906 records from 579 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0080831-240626123714530/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.6084/m9.figshare.25983065
title: Limitations and solutions for developing a grain yield and protein content forecasting model based on vegetation indices in organic wheat production – on-farm experimentation

description: Multispectral imaging has gained increased attention in recent years for monitoring and predicting crop-related characteristics. Vegetation indices can provide valuable insight into crop health and growth, especially in conventional agriculture and small-sized experimental plots. However, the effectiveness of such methods in non-conventional agricultural systems still needs to be clarified. This study was the first to test three vegetation indices (NDVI, GNDVI, NDRE) for grain yield and protein content prediction in organic farming under real-life farm management practices. Using two small-plot and one on-farm organic wheat variety trial sites, unmanned aerial vehicle-based remote sensing data was compared with physical sampling results in 2 years to assess the potential of agricultural remote sensing to predict yield and protein content on small- and medium-sized plots of organic winter wheat (<i>Triticum aestivum</i> L.). The correlations between vegetation indices and crop traits were stronger in small- than in medium-sized plots (<i>r</i><sub>max</sub> = 0.85 and 0.75, respectively, for grain yield), probably due to increased heterogeneity of the larger plots, due to differences in weed cover, soil nutrient supply, etc., and it was strongly affected by the time of measurement. Linear equation for yield and protein content prediction was not sufficiently precise; the machine learning algorithms improved the accuracy of yield estimation. Both methods considered NDRE with a higher weight than NDVI when modelling grain yield and protein content based on the vegetation index values, which suggested that NDRE was more suitable for prediction. Small-plot-based predictions over-estimated grain yield and under-estimated grain protein content in medium-sized plots.
DOI: 10.15468/dl.nefja8
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
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 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0080833-240626123714530/datasets/export for details.
DOI: 10.15468/dl.y7mqkj
title: Occurrence Download

description: A dataset containing 543 species occurrences available in GBIF matching the query:
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 "SpeciesKey is Laelia coenosa Hübner, 1805",
 "Year is greater than or equal to 2004",
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 ]
}

 The dataset includes 543 records from 54 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0080832-240626123714530/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.