Journal ArticleDOI
Geological structures inferred from airborne geophysical surveys around Lützow-Holm Bay, East Antarctica
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TLDR
The area around Syowa Station, the Japanese Antarctic wintering station in Lutzow-Holm Bay, is widely considered as a junction of the continents of Africa, India, Madagascar, and Antarctica, according to a reconstruction model of Gondwana as discussed by the authors.About:
This article is published in Precambrian Research.The article was published on 2013-09-01. It has received 29 citations till now. The article focuses on the topics: Gondwana & Gravity anomaly.read more
Citations
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Getting over continent ocean boundaries
TL;DR: In this article, the authors show that the location of the continent ocean boundary is rarely consistently estimated within the ~ 10-100 km observational uncertainty that might be expected of the geophysical data used for doing so, and that the geographical separation of estimates exceeds the width of single-study continent ocean transition zones.
Getting over Continent-Ocean Boundaries
TL;DR: In this paper, the authors show that the location of the continent ocean boundary is rarely consistently estimated within the ~ 10-100 km observational uncertainty that might be expected of the geophysical data used for doing so, and that the geographical separation of estimates exceeds the width of single-study continent ocean transition zones.
Journal ArticleDOI
Early Neoproterozoic arc magmatism in the Lützow-Holm Complex, East Antarctica: Petrology, geochemistry, zircon U–Pb geochronology and Lu–Hf isotopes and tectonic implications
Toshiaki Tsunogae,Toshiaki Tsunogae,Qiong-Yan Yang,Qiong-Yan Yang,M. Santosh,M. Santosh,M. Santosh +6 more
TL;DR: The results of as mentioned in this paper suggest that the magmatic arcs in the Lutzow-Holm Complex (LHC) during Early Neoproterozoic collage of the Neo-Neoprote continent formed under a volcanic arc, which was formed by felsic to intermediate arc magmas.
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Neoarchean–Early Paleoproterozoic and Early Neoproterozoic arc magmatism in the Lützow–Holm Complex, East Antarctica: Insights from petrology, geochemistry, zircon U–Pb geochronology and Lu–Hf isotopes
TL;DR: The Lutzow-Holm Complex (LHC) of East Antarctica forms part of the Neoproterozoic-Cambrian high-grade metamorphic segment of the East African-Antarctic Orogen as mentioned in this paper, and the trace element geochemical signatures reveal a volcanic arc affinity for the charnockites from Sudare Rocks and Vesleknausen and felsic gneiss from Rundvagshetta.
Journal ArticleDOI
New geophysical data from a key region in East Antarctica: Estimates for the spatial extent of the Tonian Oceanic Arc Super Terrane (TOAST)
TL;DR: Aerogeophysical data collected during the austral summers 2013/14 and 2014/15 to explore the largely ice-covered region south and east of Sor Rondane was used to identify the eastern spatial extent of the Tonian Oceanic Arc Super Terrane (TOAST).
References
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Journal ArticleDOI
New, improved version of generic mapping tools released
Paul Wessel,Walter H. F. Smith +1 more
TL;DR: GMT allows users to manipulate (x,y,z) data, and generate PostScript illustrations, including simple x-y diagrams, contour maps, color images, and artificially illuminated, perspective, and/or shaded-relief plots using a variety of map projections.
Journal ArticleDOI
The Rapid Calculation of Potential Anomalies
TL;DR: In this paper, it is shown how a series of Fourier transforms can be used to calculate the magnetic or gravitational anomaly caused by an uneven, non-uniform layer of material.
Journal ArticleDOI
A synopsis of events related to the assembly of eastern Gondwana
TL;DR: The assembly of the eastern part of Gondwana (eastern Africa, Arabian-Nubian shield (ANS), Seychelles, India, Madagascar, Sri Lanka, East Antarctica and Australia) resulted from a complex series of orogenic events spanning the interval from ∼750 to ∼530 Ma as mentioned in this paper.
Journal ArticleDOI
A model for the evolution of the Indian Ocean and the breakup of Gondwanaland
Ian O. Norton,John G. Sclater +1 more
TL;DR: In this article, the authors used magnetic anomaly and fracture zone information to develop a self-consistent tectonic history of the Indian and South Atlantic oceans and made three reasonably well constrained (39, 53, and 65 Ma) and two speculative (80 and 115 Ma) reconstructions of the positions of the Gondwana continents.
Journal ArticleDOI
Grenville-age basement provinces in East Antarctica: Evidence for three separate collisional orogens
TL;DR: Three Grenville-age provinces can be distinguished in East Antarctica with U-Pb zircon data as discussed by the authors, and these crustal segments represent three separate collisional orogens.
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Late Proterozoic paired metamorphic complexes in East Antarctica, with special reference to the tectonic significance of ultramafic rocks
Y Hiroi,K Shihaishi,Y Motoyoshi +2 more