Matthew G. Jackson, Sæmundur A. Halldórsson, Allison A. Price, Mark D. Kurz, J. G. Konter, Anthony Koppers, James M.D. Day,
... of volcanism on just two islands, Rarotonga and Aitutaki, making it difficult to evaluate a hotspot origin ... isotopic and major and trace element data on Aitutaki—which has two periods of volcanism, older (9· ... origin. Like Atiu, the ‘older volcanic series’ at Aitutaki was tentatively linked with the Arago hotspot based ... with geochemistry. New geochemical data on the older Aitutaki volcanic series show clear affinities to the Arago hotspot volcano Atiu. In contrast, the younger Aitutaki volcanic series, erupted on a near-atoll, exhibits ...
Tópico(s): earthquake and tectonic studies
2020 - Oxford University Press | Journal of Petrology
... long on the volcanic islands of Rarotonga and Aitutaki (Southern Cook Group) and on the atoll of ... the thickness of the crust was measured near Aitutaki along two reversed refraction profiles with a total ... 1. On the volcanic islands of Rarotonga and Aitutaki the basaltic rocks at the surface, which consist ... the velocity increases only slightly with depth. On Aitutaki these rocks are about 1·65 km thick ... sec-1. The thickness of the crust near Aitutaki is 6·4 ± 0·4 km; the velocity ... km sec-1). The crust is downwarped under. Aitutaki, the vertical deflection under the centre of the ...
Tópico(s): Seismic Imaging and Inversion Techniques
1967 - Taylor & Francis | New Zealand Journal of Geology and Geophysics
Eugene C. Rankey, Stacy Reeder, Joaquín Rodrigo Garza-Pérez,
... surficial Holocene sediments from two south Pacific atolls (Aitutaki and Maupiti) representing different physical and chemical oceanographic ... up to 25 m (Maupiti) and 9 m (Aitutaki). Although patch reefs dot these lagoons, sediment is ... abundant (up to 80% on Maupiti, 85% on Aitutaki). The occurrence of peloids, fine ooid sand, and ... grains on Maupiti Atoll (as previously documented on Aitutaki) is consistent with interpretations of the impact of ...
Tópico(s): Geological and Geophysical Studies
2011 - Society for Sedimentary Geology | Journal of Sedimentary Research
Eugene C. Rankey, Stacy Reeder,
Research Article| November 01, 2009 Holocene ooids of Aitutaki Atoll, Cook Islands, South Pacific Eugene C. Rankey; ... C. Rankey, Stacy Lynn Reeder; Holocene ooids of Aitutaki Atoll, Cook Islands, South Pacific. Geology 2009;; 37 ( ... from any locality in the Pacific Basin. On Aitutaki Atoll (Cook Islands, South Pacific), oolitic sands occur ... The occurrence and distribution of oolitic sands on Aitutaki are facilitated by a convergence of hydrodynamic and ...
Tópico(s): Geological and Geophysical Studies
2009 - Geological Society of America | Geology
Eric Snortum, James M.D. Day, Matthew G. Jackson,
... systematics are reported for xenoliths and lavas from Aitutaki (Cook Islands), to investigate the composition of Pacific ... volcanic rocks that host the xenoliths. Conversely, the Aitutaki lherzolites, harzburgites and dunites are similar in composition ... ages of Pacific mantle lithosphere from the Cook (Aitutaki ∼1·5 Ga), Austral (Tubuai’i ∼1·8 ...
Tópico(s): earthquake and tectonic studies
2019 - Oxford University Press | Journal of Petrology
Melinda S. Allen, Jacqueline Craig,
... the small (18.4 km2) almost-atoll of Aitutaki in the southern Cook Islands. Benefits and challenges ... colonial) settlements are represented by the currently known Aitutaki archaeological record. Within the relatively stable and largely ... of subsistence change across individuals and communities on Aitutaki.
Tópico(s): Archaeology and ancient environmental studies
2009 - University of Hawaii Press | Pacific Science
Yoichi Nakamura, M. Tatsumoto,
... phonolite, and trachyte) from the South Cook Islands (Aitutaki, Mauke, Rarotonga, Atiu, and Mangaia) and the Austral ... and Nd isotopic ratios. In contrast, samples from Aitutaki, Rarotonga, Mauke, and Atiu (Aitutaki group) have high 207Pb204Pb and 208Pb204Pb and moderately high 87Sr86Sr (Dupal anomaly). The Aitutaki group could have been derived from heterogeneous mantle ...
Tópico(s): earthquake and tectonic studies
1988 - Elsevier BV | Geochimica et Cosmochimica Acta
Melinda S. Allen, Alex Morrison, Andrew M. Lorrey, Jian‐xin Zhao, Geraldine Jacobsen,
... We evaluate evidence from the almost‐atoll of Aitutaki, Cook Islands against this model, providing: (1) a ... the timing and distribution of human activities across Aitutaki's evolving land and seascapes and sea level ...
Tópico(s): Isotope Analysis in Ecology
2016 - Wiley | Archaeology in Oceania/Archæology & physical anthropology in Oceania
... populations in the prehistoric past. Geoarchaeological studies on Aitutaki, southern Cook Islands, suggest sea-level fall coincident ... occupation. The coastal beach barrier which formed along Aitutaki's central western coast after sea-level fall ...
Tópico(s): Geology and Paleoclimatology Research
1998 - Elsevier BV | Oceanographic literature review
Twenty-seven 14 C determinations from Aitutaki, southern Cook Islands inform on human settlement and Holocene coastal processes. I examine sedimentary, radiometric and archaeological data from Aitutaki with reference to regional evidence for a minor ...
Tópico(s): Archaeology and ancient environmental studies
1994 - Cambridge University Press | Radiocarbon
Lionel Loubersac, Pierre‐Yves Burban, O. Lemaire, Hervé Varet, F. Chenon,
... of a prospecting survey on the atoll of Aitutaki (Cook Islands) undertaken by the SOPAC, IFREMER has ... in the achievement of a bathymetric model for Aitutaki's lagoon.
Tópico(s): Geology and Paleoclimatology Research
1991 - Taylor & Francis | Geocarto International
Melinda S. Allen, David W. Steadman,
... of cultural deposit at the Ureia site (AIT10), Aitutaki, Cook Islands. First discovered and excavated by Peter ... species of birds that no longer occur on Aitutaki: the Sooty Crake ( Porzana tabuensis ) and an extinct, ...
Tópico(s): Archaeology and ancient environmental studies
1990 - Wiley | Archaeology in Oceania/Archæology & physical anthropology in Oceania
Donald L. Turner, Richard D. Jarrard,
... Atiu, Mitiaro, Mauke, and Rimatara and from Mangaia, Aitutaki and Rarotonga, for which only unlocated samples had been previously dated. Dated volcanism on Aitutaki spans an interval of at least 7 Ma. The ages from Aitutaki, Atiu, Mauke, Mitiaro, Rarotonga, and Rarutu are much ...
Tópico(s): Geology and Paleoclimatology Research
1982 - Elsevier BV | Journal of Volcanology and Geothermal Research
... Southern Cook Islands of Rarotonga, Mangaia and the Aitutaki-Mauke group using (1) estimates of the change— ... the older and nearby islands of Mangaia and Aitutaki. This, together with an earlier result for Tahiti [ ... may be an uncharted submarine extension of the Aitutaki-Mauke chain.
Tópico(s): High-pressure geophysics and materials
1981 - Elsevier BV | Earth and Planetary Science Letters
Abstract The Pleistocene lavas and palagonite tuffs of Aitutaki form a nephelinic suite dominated by olivine nephelinite ... age, composition, and occurrence, the volcanic rocks of Aitutaki are similar to the Honolulu Group on Oahu ...
Tópico(s): Geology and Paleoclimatology Research
1978 - Taylor & Francis | New Zealand Journal of Geology and Geophysics
... shallow platform interior of the almost-atoll of Aitutaki, Cook Islands, is significant, because abundant non-skeletal ... order of decreasing abundance, non-skeletal grains in Aitutaki include peloids, aggregate grains, and ooids. Peloids are ...
Tópico(s): Marine and coastal plant biology
2020 - Elsevier BV | Sedimentary Geology
Kane Ditchfield, Simon Holdaway, Melinda S. Allen, Andrew McAlister,
... early stage adze manufacturing assemblage from Moturakau Rockshelter, Aitutaki Island in the southern Cook Islands. Application of ... of distribution remained the same, essentially local to Aitutaki.
Tópico(s): Pleistocene-Era Hominins and Archaeology
2014 - Elsevier BV | Journal of Archaeological Science
Melinda S. Allen, Rod Wallace,
... this archipelago, the Ureia site (AIT-10) on Aitutaki Island, now indicate occupation from cal AD 1225– ...
Tópico(s): Archaeology and ancient environmental studies
2007 - Cambridge University Press | Radiocarbon
... samples has been studied from sites on the Aitutaki-Jarvis Transect, between the equator and 17°S ...
Tópico(s): Geology and Paleoclimatology Research
1994 - Geological Society of London | Journal of the Geological Society
D.S. Cronan, Richard A. Hodkinson,
... biological productivity. In the northern part of the Aitutaki-Jarvis transect, under high biological productivity in the ...
Tópico(s): Geomagnetism and Paleomagnetism Studies
1994 - Geological Society of London | Journal of the Geological Society
... geographically dispersed assemblages and the temporal sequence from Aitutaki, Cook Islands, I suggest that these assemblage differences ... that subsequently fostered a decline in angling on Aitutaki and possibly elsewhere in the region.
Tópico(s): Island Studies and Pacific Affairs
1992 - University of Hawaii Press | Asian perspectives
James R. Hein, S. C. Gray, Bruce M. Richmond, L.D. White,
... 30–69 m in the shallow lagoon of Aitutaki in the southern Cook Islands. One hole encountered ...
Tópico(s): earthquake and tectonic studies
1992 - Wiley | Sedimentology
G. Brent Dalrymple, Richard D. Jarrard, David A. Clague,
... 19 volcanic rocks from Rurutu, Mangaia, Rarotonga, and Aitutaki in the Cook-Austral chain do not show ... 6 to 18.9 m.y., and for Aitutaki from 0.66 to 0.77 m.y. ...
Tópico(s): Geology and Paleoclimatology Research
1975 - Geological Society of America | Geological Society of America Bulletin
... and sedimentation patterns show that the lagoons of Aitutaki and Manuae, in the Southern Cook Group, are ...
Tópico(s): Geological and Geophysical Studies
1971 - Taylor & Francis | New Zealand Journal of Geology and Geophysics
... social organization, in the three islands of Rarotonga, Aitutaki and Mangaia. Technology, and the historical origins of ... of social organization (Sahlins, 1968 : 20). Rarotonga and Aitutaki both expressed diversified economies, while Mangaia, with its ...
Tópico(s): Island Studies and Pacific Affairs
1971 - Wiley | Archaeology in Oceania/Archæology & physical anthropology in Oceania
Abstract Palmerston, Aitutaki, Manuae, Atiu, Takutea, Mitiaro and Mauke, and Eclipse Seamount, within the Southern Cook Island Group, form a linear ... volcanoes. Crustal warping due to subsidence of the Aitutaki-Mauke group of volcanoes has resulted in formation ...
Tópico(s): Geological and Geophysical Studies
1967 - Taylor & Francis | New Zealand Journal of Geology and Geophysics
R. V. Fodor, G. R. Bauer, Klaus Keil,
... 0.70 m.y. old olivine nephelinite of Aitutaki Island, Cook Islands, yielded the following: (1) Olivine, ...
Tópico(s): Crystal Structures and Properties
1982 - Taylor & Francis | New Zealand Journal of Geology and Geophysics
... mann and Culex annulirostris Skuse were collected at Aitutaki, Southern Cook Islands, during a brief visit in ...
Tópico(s): Mosquito-borne diseases and control
1954 - Cambridge University Press | Bulletin of Entomological Research
Natalie Prinz, R. N. Story, S.R. Lyon, Sebastian C. A. Ferse, Sonia Bejarano,
... was only provided for this study, within the Aitutaki lagoon (Cook Islands). The fish community was censused ...
Tópico(s): Marine and fisheries research
2020 - Frontiers Media | Frontiers in Marine Science
Lindsay Buff, Matthew G. Jackson, Kevin Konrad, J. G. Konter, Michael Bizimis, Allison A. Price, Estelle F. Rose‐Koga, J. Blusztajn, Anthony Koppers, Santiago Herrera,
... volcanic lineament extends from Macdonald Seamount (east) to Aitutaki Island (west) in the South Pacific Ocean and ...
Tópico(s): Paleontology and Stratigraphy of Fossils
2021 - Geological Society of America | Geology