title: Stable isotope values in modern bryozoan carbonate from New Zealand and implications for paleoenvironmental interpretation

authors: Smith, Abigail M.

subjects: bryozoans

abstract: Bryozoan carbonate contains useful geochemical evidence of temperate shelf paleoenvironments. Stable isotope values were determined for 103 modern marine bryozoan skeletons representing 30 species from New Zealand. δ18O values range from -1.4 to 2.8 VPDB, while δ13C range from -4.5 to 2.8 VPDB (values uncorrected for mineralogical variation). These values are distinct from those of both tropical marine skeletons and New Zealand Tertiary fossils. Most bryozoans secrete carbonate in or near isotopic equilibrium with sea water, except for Celleporina and Steginoporella. The complex and variable mineralogies of the bryozoans reported here make correction for mineralogical effects problematic. Nevertheless, mainly aragonitic forms display higher isotope values, as anticipated. Both temperature and salinity constrain δ18O and δ13C values, and vary with latitude and water depth. Ten samples from a single branch of Cinctipora elegans from the Otago shelf cover a narrow range, although the striking difference in carbon isotope values between the endozone and exozone probably reflects different mineralisation histories. Our stable isotope results from three different laboratories on a single population from a single location are encouragingly consistent. Monomineralic bryozoans, when carefully chosen to avoid species suspected of vital fractionation, have considerable potential as geochemical paleoenvironmental indicators, particularly in temperate marine environments where bryozoans are dominant sediment producers.

text: Stable isotope values in modern bryozoan carbonate from New Zealand and implications for paleoenvironmental interpretation Bryozoan carbonate contains useful geochemical evidence of temperate shelf paleoenvironments. Stable isotope values were determined for 103 modern marine bryozoan skeletons representing 30 species from New Zealand. δ18O values range from -1.4 to 2.8 VPDB, while δ13C range from -4.5 to 2.8 VPDB (values uncorrected for mineralogical variation). These values are distinct from those of both tropical marine skeletons and New Zealand Tertiary fossils. Most bryozoans secrete carbonate in or near isotopic equilibrium with sea water, except for Celleporina and Steginoporella. The complex and variable mineralogies of the bryozoans reported here make correction for mineralogical effects problematic. Nevertheless, mainly aragonitic forms display higher isotope values, as anticipated. Both temperature and salinity constrain δ18O and δ13C values, and vary with latitude and water depth. Ten samples from a single branch of Cinctipora elegans from the Otago shelf cover a narrow range, although the striking difference in carbon isotope values between the endozone and exozone probably reflects different mineralisation histories. Our stable isotope results from three different laboratories on a single population from a single location are encouragingly consistent. Monomineralic bryozoans, when carefully chosen to avoid species suspected of vital fractionation, have considerable potential as geochemical paleoenvironmental indicators, particularly in temperate marine environments where bryozoans are dominant sediment producers.

year: 2004-12-01

title: OpinionZoom, a modular tool to explore tourism opinions on the Web

authors: Marrese-Taylor, Edison

abstract: In this paper, we propose OpinionZoom, a modular software that helps users in an easy manner to understand the vast amount of tourism opinions disposed all over the Web. We also successfully implemented and tested OpinionZoom, encompassing the situation of the tourism industry in Los Lagos, also known as the Lake District, in Chile. Results showed the effectiveness of the designed proposal when applied to solving this specific industry's issues.

text: OpinionZoom, a modular tool to explore tourism opinions on the Web In this paper, we propose OpinionZoom, a modular software that helps users in an easy manner to understand the vast amount of tourism opinions disposed all over the Web. We also successfully implemented and tested OpinionZoom, encompassing the situation of the tourism industry in Los Lagos, also known as the Lake District, in Chile. Results showed the effectiveness of the designed proposal when applied to solving this specific industry's issues.

year: 2013-12-01

title: Ko Tikanga Te Mātāmua:  ngā pūrākau, ngā pakiwaitara, me mihi, ka tika

authors: Carrucan, Edmond Thomas

subjects: Law

abstract: This study highlights pūrākau and pakiwaitara as legal precedents that can bring Tikanga to life in unique ways. Using Kaupapa Māori and Mana Tāne methodologies, I address two problems within a larger project towards further normalising Tikanga within the legal system and legal education.

The first problem is the key misconception that there are two primary sources of law: statutes and common law. My proposed solution involves reconceiving three primary sources of law: Tikanga, statutes and common law. The second problem is how to source from Tikanga in making legal arguments. My proposed solution encourages story analysis of pūrākau and pakiwaitara and the use of these legal precedents within legal submissions. Accordingly, this study has two purposes.

In embarking on my journey of storytelling, I address the first purpose which is to test whether Tikanga is the first law and supreme law of Aotearoa, as was the seminal proposition of Ani Mikaere. This addresses the key misconception referred to above, that there are only two primary sources of law. Through analysis of Tikanga jurists and Western jurists I conclude Mikaere was right. Tikanga is the supreme law of Aotearoa: Ko Tikanga Te Mātāmua. I propose a new model called Te Whānau Ture as a legal family of three primary law sources representing this finding.

This research then addresses the second purpose in showing how ngā pūrākau me ngā pakiwaitara make valuable contributions to the body of law: me mihi, ka tika. Here, this study proposes a new model called, Whai Matua o Te Ture Māori, a symbolic stingray comprised of fourteen objects of Māori law. Later, I propose a further model Ātea Whakaaro, to enable ethical legal story analysis.

This study responds to (a) indigenising legal education, (b) the inevitability of Tikanga test cases and (c) the current Ao Mārama model. The significance of pūrākau and pakiwaitara in legal settings emerges from this study and a reclaiming of a Māori Legal Method becomes inevitable.

text: Ko Tikanga Te Mātāmua:  ngā pūrākau, ngā pakiwaitara, me mihi, ka tika This study highlights pūrākau and pakiwaitara as legal precedents that can bring Tikanga to life in unique ways. Using Kaupapa Māori and Mana Tāne methodologies, I address two problems within a larger project towards further normalising Tikanga within the legal system and legal education.

The first problem is the key misconception that there are two primary sources of law: statutes and common law. My proposed solution involves reconceiving three primary sources of law: Tikanga, statutes and common law. The second problem is how to source from Tikanga in making legal arguments. My proposed solution encourages story analysis of pūrākau and pakiwaitara and the use of these legal precedents within legal submissions. Accordingly, this study has two purposes.

In embarking on my journey of storytelling, I address the first purpose which is to test whether Tikanga is the first law and supreme law of Aotearoa, as was the seminal proposition of Ani Mikaere. This addresses the key misconception referred to above, that there are only two primary sources of law. Through analysis of Tikanga jurists and Western jurists I conclude Mikaere was right. Tikanga is the supreme law of Aotearoa: Ko Tikanga Te Mātāmua. I propose a new model called Te Whānau Ture as a legal family of three primary law sources representing this finding.

This research then addresses the second purpose in showing how ngā pūrākau me ngā pakiwaitara make valuable contributions to the body of law: me mihi, ka tika. Here, this study proposes a new model called, Whai Matua o Te Ture Māori, a symbolic stingray comprised of fourteen objects of Māori law. Later, I propose a further model Ātea Whakaaro, to enable ethical legal story analysis.

This study responds to (a) indigenising legal education, (b) the inevitability of Tikanga test cases and (c) the current Ao Mārama model. The significance of pūrākau and pakiwaitara in legal settings emerges from this study and a reclaiming of a Māori Legal Method becomes inevitable.

year: 2021