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Equatorial Indian Ocean

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Journal Article
Journal: Geology
Published: 01 January 2003
Geology (2003) 31 (1): 47-50.
...Anil K. Gupta; Ellen Thomas Abstract The Indian monsoon system, as recorded by ocean-floor biota (benthic foraminifera) at Ocean Drilling Program Site 758 in the eastern equatorial Indian Ocean, has varied dramatically over the past 5.5 m.y., long after the onset of the monsoons at 10–8 Ma. Benthic...
FIGURES
Series: Geological Society, London, Special Publications
Published: 01 January 2013
DOI: 10.1144/SP373.16
EISBN: 9781862396364
... of magnetic polarity. The samples with MAD values ≥15° were discarded. Some of them were showing low intensity owing to low magnetic concentration; the others can be interpreted as drilling-induced overprint. Abstract Ocean Drilling Program (ODP) Site 711, located in the western equatorial Indian Ocean...
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Series: Geological Society, London, Special Publications
Published: 01 January 2010
DOI: 10.1144/SP342.3
EISBN: 9781862395909
... Abstract This study is aimed at understanding past 444 ka record of climate variability in the equatorial Indian Ocean using high resolution records of planktic and benthic foraminifera and pteropods from Ocean Drilling Program Hole 716A, Maldives Ridge, southeastern Arabian Sea. In total, 892...
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Journal Article
Journal: Geology
Published: 01 March 2009
Geology (2009) 37 (3): 287-288.
... ). Despite the important new information from paleo-altimetry, the deformation history of the equatorial Indian Ocean is telling us that the force from the Tibetan Plateau increased significantly at ca. 8 Ma ago. Thus, a sudden increase in plateau height at ca. 8 Ma ago seems required by the observed...
FIGURES
Series: AAPG Studies in Geology
Published: 01 January 2004
DOI: 10.1306/St49974
EISBN: 9781629810508
Journal Article
Published: 01 November 1999
Bulletin de la Société Géologique de France (1999) 170 (6): 899-914.
...Helene Jacot des Combes; Nicolas P. Tribovillard; Jean-Pierre Caulet Abstract Major and selected trace element (Al, Fe, Mg, K, Ba, Mn, V, Cu, Ni, and Ti) records were analyzed in a core recovered in the Amirante passage (equatorial Indian Ocean) in order to monitor the sedimentary response...
Journal Article
Published: 30 March 1988
Micropaleontology (1988) 34 (1): 63-66.
Image
Tectonic map of the <b>equatorial</b> <b>Indian</b> <b>Ocean</b> showing band-pass filtered grav...
in > Geology
Published: 01 March 2009
Figure 1. Tectonic map of the equatorial Indian Ocean showing band-pass filtered gravity and focal mechanisms for earthquakes with moments > 3 × 10 16 N-m (black-filled solutions are Harvard centroid-moment-tensor solutions; gray-filled solutions are from Bergman et al. [1984
Journal Article
Published: 01 January 2007
Micropaleontology (2007) 53 (1-2): 73-103.
... the western equatorial Indian Ocean) and the description of the genus is emended. Genus Streptochilus Brönnimann and Resig 1971 , emend. Smart and Thomas this paper Bolivina sp. – SMART and MURRAY 1994 , fig. 2, no. 2, – SMART and RAMSAY 1995 , fig. 2 Streptochilus was thought...
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Journal Article
Journal: Geology
Published: 01 April 2015
Geology (2015) 43 (4): 359-362.
... April 2012, while clearly occurring in the equatorial Indian Ocean diffuse plate boundary zone, are a case in point, with disagreement on the nature of the focal mechanisms and the faults that ruptured. We use bathymetric and seismic reflection data from the rupture area of the earthquakes...
FIGURES
Series: AAPG Memoir
Published: 01 January 2004
DOI: 10.1306/M81928
EISBN: 9781629810058
... Abstract Carbonate bank margins in the Maldives, a large isolated carbonate platform in the equatorial Indian Ocean, prograded significantly in the middle Miocene. The interpretation of a dense grid of two-dimensional seismic data located pro-grading margins and imaged the internal architecture...
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Journal Article
Journal: Geology
Published: 01 February 1998
Geology (1998) 26 (2): 131-134.
..., there is ample evidence of intraplate deformation in the equatorial Indian Ocean, west of the Ninetyeast aseismic ridge. Prior to this study, no direct evidence of deformation east of the Ninetyeast Ridge was available. We present the results of a multipurpose geophysical cruise showing that intraplate...
Series: AAPG Studies in Geology
Published: 01 January 2004
DOI: 10.1306/St49974C1
EISBN: 9781629810508
... understanding of sedimentary processes and enhancing our knowledge of earth's history. This study examines the stratigraphy and evolution of the Maldives isolated carbonate platform, in the equatorial Indian Ocean. The Maldives platform is unique because of its enormous size (800 × 130 km). It is the second...
FIGURES
Series: AAPG Studies in Geology
Published: 01 January 2004
DOI: 10.1306/St49974C3
EISBN: 9781629810508
...), thus making a strong argument for the hot-spot origin of the ridge. Abstract The atolls of the Maldive archipelago form the central and largest part of the Chagos-Laccadive atoll chain in the equatorial Indian Ocean (Figure 1). The north-south-trending Chagos-Laccadive chain extends from...
FIGURES
Series: AAPG Studies in Geology
Published: 01 January 2004
DOI: 10.1306/St49974C4
EISBN: 9781629810508
... the NMA-1 (TD 2221 m) water-bearing well in the lagoon of the North Male atoll. The drilling encountered porous carbonate rocks and a potential source rock before penetrating late Paleocene basalts. In 1987, ODP Leg 115 drilled several sites in the equatorial Indian Ocean, including three in the Maldives...
Journal Article
Published: 01 July 1984
Journal of Paleontology (1984) 58 (4): 1026-1040.
...Paul R. Belyea; Robert C. Thunell Abstract Fifty specimens each of Pulleniatina primalis and Neogloboquadrina acostaensis were selected from 16 late Miocene to early Pliocene samples from DSDP Site 214 in the equatorial Indian Ocean. All specimens were mounted in the umbilical view and their shape...
Journal Article
Published: 01 November 1979
Journal of Paleontology (1979) 53 (6): 1401-1415.
Journal Article
Journal: Geology
Published: 01 September 2004
Geology (2004) 32 (9): 753-756.
... of the Ninetyeast Ridge combined with published data show that a major increase in biogenic productivity occurred at 10–8 Ma throughout the Indian Ocean, the equatorial Pacific, and southern Atlantic. We suggest that this Indian Ocean high-productivity event was not simply the result of monsoon-induced upwelling...
FIGURES
Image
Surface water of the modern <b>equatorial</b> Atlantic, <b>Indian</b>, and Pacific <b>Oceans</b>...
in > Geology
Published: 01 November 2014
Figure 1. Surface water of the modern equatorial Atlantic, Indian, and Pacific Oceans constructed using Ocean Data View software (R. Schlitzer, 2014, http://odv.awi.de ). EQ—equator. A: Mean annual sea-surface temperature ( Locarnini et al., 2006 ). Sites used in this study are shown (see text
Journal Article
Published: 01 July 2015
... ( Fig. 8 ). The Indian subcontinent was positioned along the equator during the early Eocene. The early Eocene sections in western India have recently received wide attention with recognition of evidence for hyperthermal events, including PETM, ETM 2 and EECO, using δ 13 C and other proxies ( Clementz...
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