Zenon Palacz, Andrew D. Saunder,
... geochemically distinct components within the OIB mantle. The Mangaia component represented by the islands of Mangaia and Tubuai has extremely radiogenic Pb isotopes but ... the Dupal component are slightly lower than for Mangaia. The Dupal isotope enrichment is coupled with high LIL/HFS element ratios relative to Mangaia. The Mangaia isotope enrichment is associated with low LIL/HFS ... inferred low ThU , and PbNb ratios indicate that Mangaia has been enriched in U but depleted in Pb relative to MORB. It is suggested that Mangaia could be derived from hydrothermally altered, subducted MORB. ...
Tópico(s): earthquake and tectonic studies
1986 - Elsevier BV | Earth and Planetary Science Letters
James Dottin, Jabrane Labidi, Matthew G. Jackson, Jon Woodhead, James Farquhar,
Abstract Mangaia, an ocean island in the Cook‐Austral volcanic chain, is the type locality for the HIMU mantle ... one of the previously analyzed and four additional Mangaia basalts to further test for the prevalence of anomalous S in the HIMU mantle source feeding Mangaia. We document compositions that range from −5.13‰ ... isotope heterogeneity in the HIMU mantle source at Mangaia. We show that S‐isotope compositions of bulk ... different stages of crystallization by phenocrysts in the Mangaia HIMU sulfur endmember.
Tópico(s): Paleontology and Stratigraphy of Fossils
2020 - Wiley | Geochemistry Geophysics Geosystems
David W. Steadman, Patrick Vinton Kirch,
Mangaia (Cook Islands) consists of a weathered volcanic interior encircled by limestones known as the makatea. Excavations ... include nine seabirds (at least three extirpated on Mangaia) and 12 land birds (eight extirpated or extinct). ... palynological and stratigraphic signals of human presence on Mangaia, especially forest clearance of the volcanic interior, beginning ... 44 is the oldest archaeological site known on Mangaia. Whether other species of birds were lost in ...
Tópico(s): Plant and Fungal Species Descriptions
1990 - National Academy of Sciences | Proceedings of the National Academy of Sciences
Claude Herzberg, Rita A. Cabral, Matthew G. Jackson, Christopher Vidito, James M.D. Day, E. H. Hauri,
Lavas from Mangaia in the Cook–Austral island chain, Polynesia, define an HIMU (or high μ, where μ=U238/Pb204) global ... Mass independently fractionated (MIF) sulfur isotopes indicate that Mangaia lavas sampled recycled Archean material that was once ... the mantle. Here we examine this hypothesis for Mangaia using high-precision electron microprobe analysis on olivine ...
Tópico(s): Geochemistry and Geologic Mapping
2014 - Elsevier BV | Earth and Planetary Science Letters
Rita A. Cabral, Matthew G. Jackson, Kenneth T. Koga, Estelle F. Rose‐Koga, E. H. Hauri, Martin J. Whitehouse, Allison A. Price, James M.D. Day, Nobumichi Shimizu, K. A. Kelley,
Abstract Mangaia hosts the most radiogenic Pb‐isotopic compositions observed in ocean island basalts and represents the HIMU (high ... We homogenized olivine‐hosted melt inclusions separated from Mangaia lavas and the resulting glassy inclusions made possible ... from 119 to 245 in the most pristine Mangaia inclusions; excluding an inclusion that shows evidence for ... with previous observations of carbonate blebs in other Mangaia melt inclusions, highlight the importance of CO 2 ...
Tópico(s): earthquake and tectonic studies
2014 - Wiley | Geochemistry Geophysics Geosystems
... presented for volcanic rocks from the island of Mangaia in Polynesia, which forms the most extreme example ... Cook-Austral archipelago are investigated. Within the Macdonald-Mangaia segment relatively well-defined age progressions require a ... be largely unrelated to volcanism within the Macdonald-Mangaia segment.
Tópico(s): Geochemistry and Geologic Mapping
1996 - Elsevier BV | Journal of Volcanology and Geothermal Research
... of swamps inside the inner makatea rim of Mangaia was investigated to show Holocene changes in vegetation ... change in terrestrial vegetation of the Holocene on Mangaia was clearance of forest by people, resulting in ... infilling of the lakes. Humans were present on Mangaia as early as 2500 yr B.P. Although ...
Tópico(s): Isotope Analysis in Ecology
1994 - University of Hawaii Press | Pacific Science
Yoichi Nakamura, M. Tatsumoto,
... South Cook Islands (Aitutaki, Mauke, Rarotonga, Atiu, and Mangaia) and the Austral Islands (Rimatara and Rurutu). The ... of Sr and Nd are less variable. Isotopically, Mangaia, Rimatara, and Rurutu form one group (Mangaia group), which shows extremely radiogenic Pb isotopic compositions ... and oceanic slabs). On the other hand, the Mangaia component could have been derived from the depleted ...
Tópico(s): earthquake and tectonic studies
1988 - Elsevier BV | Geochimica et Cosmochimica Acta
Nobuyuki Yonekura, T. Ishii, Yoshiki Saito, Yasuo Maeda, Yoshiaki Matsushima, E. Matsumoto, Hajime Kayanne,
... rheological structure of the Earth. We have studied Mangaia Island, South Cooks, as one such oceanic island ... Geological and geomorphological studies of the coast of Mangaia Island have revealed that there was a higher ... the old reef crest. The reef margin of Mangaia grew outward intermittently with seaward jump of the ...
Tópico(s): Pacific and Southeast Asian Studies
1988 - Elsevier BV | Palaeogeography Palaeoclimatology Palaeoecology
Elizabeth Niespolo, Warren D. Sharp, Patrick Vinton Kirch,
... well-studied, stratified archaeological sequence at Tangatatau Rockshelter, Mangaia (site MAN-44, Cook Islands), develop screening criteria ... from coral abraders support early Polynesian arrival on Mangaia (by 1011.6 ± 5.8 CE) and the ...
Tópico(s): Geology and Paleoclimatology Research
2018 - Elsevier BV | Journal of Archaeological Science
Oliver Nebel, Richard Arculus, W. van Westrenen, Jon Woodhead, Frances E. Jenner, Yona Nebel‐Jacobsen, Martin Wille, Stephen M. Eggins,
... isotope evolution of the most extreme HIMU location (Mangaia, French Polynesia). In comparison with global MORB and other OIB types, Mangaia samples define a unique trend in coupled Hf– ...
Tópico(s): earthquake and tectonic studies
2013 - Elsevier BV | Geochimica et Cosmochimica Acta
... Mangarewa der erste im Kampf Erschlagene und auf Mangaia, also bereits im heutigen polynesisch-melanesischen Grenzgebiet, wird ... to be killed in the battle, and on Mangaia which is today in the Polynesian-Melanesian border ... sacrifices as 'fish' is certainly not restricted to Mangaia. Many other Polynesian societies employed similar imagery." 12" ...
Tópico(s): Phonetics and Phonology Research
2011 - Routledge | Journal of Quantitative Linguistics
Jenny A. Cousins, Stephen G. Compton,
... c . 1,730 on Rarotonga and 78 on Mangaia. A lack of suitable habitat on Mangaia was the most important factor affecting abundance. Overhunting ... from tourists. Habitat protection and enhancement, particularly on Mangaia, will be essential.
Tópico(s): Human-Animal Interaction Studies
2005 - Cambridge University Press | Oryx
Susan C. Antón, David W. Steadman,
... a particular region. Although several rockshelter sites on Mangaia, Cook Islands have yielded burned, fragmentary human bones ... representing at least 92 individuals in caves of Mangaia, Cook Islands, in order to begin to develop ...
Tópico(s): Isotope Analysis in Ecology
2003 - Wiley | International Journal of Osteoarchaeology
... seven experiments on phenocrysts coming from Kauai, Maui, Mangaia (ol and cpx), Tubuai, and Raivavae. The analytical ... secondary He reservoir. The results from Maui and Mangaia are examined with some detail to investigate the ... 3He for Maui and radiogenic 4He for the Mangaia cpx. The result of the research reported confirms ...
Tópico(s): High-pressure geophysics and materials
2000 - Elsevier BV | Geochimica et Cosmochimica Acta
... islands of Savaii, Tahaa, Rarotonga, Rurutu, Tubuai and Mangaia are investigated. Re concentrations range from 100 to ... ratios in HIMU basalts from Rurutu, Tubuai and Mangaia range from 1.1159 to 1.2473, and ... the Os isotopic compositions in the Tubuai and Mangaia basalts indicates that interaction of these basalts with ...
Tópico(s): earthquake and tectonic studies
1993 - Elsevier BV | Earth and Planetary Science Letters
Donald L. Turner, Richard D. Jarrard,
... oldest exposed volcanic rocks on the Pacific plate (Mangaia, 19.3 ± 0.6 Ma B.P.). We ... of Atiu, Mitiaro, Mauke, and Rimatara and from Mangaia, Aitutaki and Rarotonga, for which only unlocated samples ... both new and previously reported age data from Mangaia are consistent with the predicted age for this ...
Tópico(s): Geology and Paleoclimatology Research
1982 - Elsevier BV | Journal of Volcanology and Geothermal Research
W. T. Ward, Phyllis Ross, Donald J. Colquhoun,
... South Carolina, supplemented by observations from New Zealand, Mangaia (Cook Islands), Morocco and Lebanon, suggest that six ... rates of long-term earth movement relative to Mangaia are shown by comparison of shoreline elevations to ... relative values for uplift become absolute rates if Mangaia has been free of earth movements in Quaternary ...
Tópico(s): Methane Hydrates and Related Phenomena
1971 - Elsevier BV | Palaeogeography Palaeoclimatology Palaeoecology
Kiyoshi Katoh, Toru Yamauchi, Kouichi Hiraiwa,
... the residents of Rarotonga (the most westernized) and Mangaia (a less westernized island) in 1986. The rise ... 9 mmHg) relatively higher in Rarotonga than in Mangaia. The mean body mass index was much the ... subscapular sites were thicker in Rarotonga than in Mangaia in each sex and age group. The mean ... consistently low (1.09 to 0.73) in Mangaia. Body mass index correlated with both systolic and ...
Tópico(s): Obesity, Physical Activity, Diet
1990 - Tohoku University | The Tohoku Journal of Experimental Medicine
Catherine Chagué‐Goff, Jordan Chi Hang Chan, James Goff, Patricia Gadd,
... peat sequence from the shore of Lake Tiriara, Mangaia, Cook Islands, was analyzed using an ITRAX core ...
Tópico(s): Archaeology and ancient environmental studies
2016 - Wiley | Island Arc
Susan L. Balenger, Marlene Zuk,
... call-less environment. Crickets from Kauai, Oahu and Mangaia, a Cook Islands population without the flatwing phenotype, ... reared with calling song. Males from Oahu and Mangaia, however, showed no such effect of acoustic rearing ...
Tópico(s): Insect and Arachnid Ecology and Behavior
2015 - Elsevier BV | Animal Behaviour
Matthew G. Jackson, Kenneth T. Koga, Allison A. Price, J. G. Konter, Anthony Koppers, Valerie Finlayson, Kevin Konrad, E. H. Hauri, Andrew Kylander‐Clark, K. A. Kelley, Mark A. Kendrick,
... elevated F/Nd ratios in end‐member HIMU Mangaia melt inclusions. The Tuvalu glasses with the most ... 119–245) previously measured in melt inclusions from Mangaia. CO 2 ‐H 2 O equilibrium solubility models ...
Tópico(s): Geochemistry and Elemental Analysis
2015 - Wiley | Geochemistry Geophysics Geosystems
... Raivavae of the Austral Islands, and Atiu and Mangaia of the southern Cook Islands. For Tubuai and ... is extant on nearby Rurutu. For Atiu and Mangaia, extant simuliids have not been reported, but are ...
Tópico(s): Geology and Paleoclimatology Research
2013 - Q15088586 | Zootaxa
Richard Walter, Michael Reilly,
... strength of a multi-disciplinary approach to understanding Mangaia's history lies in recognising disciplinary differences rather ... provide a more nuanced, multi-layered representation of Mangaia's political history than either does on its ...
Tópico(s): Anthropological Studies and Insights
2010 - Polynesian Society | Journal of the Polynesian Society
... examining historical documents from selected island societies, namely, Mangaia and Aotearoa, we can understand the dynamics of ...
Tópico(s): Island Studies and Pacific Affairs
2010 - Routledge | Journal of Pacific History
Nicole L. Griffin, Adam D. Gordon, Brian G. Richmond, Susan C. Antón,
... describes a human foot bone assemblage from prehistoric Mangaia, Cook Islands in the context of diaphyseal cross- ...
Tópico(s): Forensic Anthropology and Bioarchaeology Studies
2008 - Elsevier BV | HOMO
A. E. Saal, S. Hart, Nobumichi Shimizu, E HAURI, Graham D. Layne, J EILER,
... from four individual lava samples representing the HIMU (Mangaia Island), EMI (Pitcairn Island) and EMII (Tahaa Island) ... 206Pb space produced by the melt inclusions from Mangaia, Tahaa and fPitcairn samples reproduces the entire trend ...
Tópico(s): Geology and Paleoclimatology Research
2005 - Elsevier BV | Earth and Planetary Science Letters
Hisayoshi Yurimoto, Tetsu Kogiso, Kanshi Abe, Hans Gustave Barsczus, Atsushi Utsunomiya, Shigenori Maruyama,
... inclusions in olivine phenocrysts of lava samples from Mangaia and Rarotonga, Cook–Austral islands, have been determined ... isotopic compositions of sulfide-free melt inclusions from Mangaia Island are widely distributed along the join between ...
Tópico(s): earthquake and tectonic studies
2004 - Elsevier BV | Physics of The Earth and Planetary Interiors
... during the 700‐year occupation of Tangatatau Rockshelter, Mangaia, southern Cook Islands. The prey choice model suggests ...
Tópico(s): Archaeology and ancient environmental studies
2001 - Wiley | International Journal of Osteoarchaeology
Pierre Schiano, Kevin W. Burton, Bernard Dupré, J. L. Birck, Gérard Guille, Claude J. Allègre,
... between a HIMU-type end-member represented by Mangaia and Tubuai islands and characterized by radiogenic Os ... signature of the mantle component involved in Tubuai–Mangaia mantle sources requires long-term enrichments of U ...
Tópico(s): Geochemistry and Elemental Analysis
2001 - Elsevier BV | Earth and Planetary Science Letters