Journal ArticleDOI
A 2.5 Ga porphyry Cu–Mo–Au deposit at Malanjkhand, central India: implications for Late Archean continental assembly
Holly J. Stein,Holly J. Stein,Judith L. Hannah,Aaron Zimmerman,R. J. Markey,Sanjib Chandra Sarkar,Arnab Pal +6 more
Reads0
Chats0
TLDR
In this paper, the authors used ID-NTIMS data to provide a clear Late Archean-Early Paleoproterozoic age for the Malanjkhand deposit and by implication for its calc-alkaline granitoid host.About:
This article is published in Precambrian Research.The article was published on 2004-10-22. It has received 186 citations till now. The article focuses on the topics: Proterozoic & Craton.read more
Citations
More filters
Journal ArticleDOI
Special Paper: Adakite-Like Rocks: Their Diverse Origins and Questionable Role in Metallogenesis
TL;DR: The case for these petrogenetic models for adakites and high Mg andesites is best made in the Archean, when higher mantle geotherms resulted in subducting slabs potentially reaching partial melting temperatures at shallow depths before dehydration rendered the slab infusible as mentioned in this paper.
Journal ArticleDOI
Precambrian crustal evolution of Peninsular India: A 3.0 billion year odyssey
Joseph G. Meert,Manoj K. Pandit,Vimal R. Pradhan,Jonathan Banks,Robert Sirianni,Misty M. Stroud,Brittany Newstead,Jennifer N. Gifford +7 more
TL;DR: In this paper, the authors review the major tectonic and igneous events that led to the formation of Peninsular India and provide an up-to-date geochronologic summary of the Precambrian.
Journal ArticleDOI
1891–1883 Ma Southern Bastar–Cuddapah mafic igneous events, India: A newly recognized large igneous province
TL;DR: A newly recognized remnant of a Paleoproterozoic Large Igneous Province has been identified in the southern Bastar craton and nearby Cuddapah basin from the adjacent Dharwar craton, India as mentioned in this paper.
Journal ArticleDOI
Reconstructing pre-Pangean supercontinents
TL;DR: A consensus model of Rodinia's assembly and fragmentation has arisen from the International Geoscience Programme Project 440 working group, but the reconstruction is supported by rather sparse defi nitive-quality data as mentioned in this paper.
Journal ArticleDOI
Late Archean to Early Paleoproterozoic global tectonics, environmental change and the rise of atmospheric oxygen
TL;DR: A detailed analysis of the tectonostratigraphic records of Late Archean to Early Paleoproterozoic terranes indicates linkage between global tectonics, changing sea levels and environmental conditions as mentioned in this paper.
References
More filters
Journal ArticleDOI
Review of global 2.1-1.8 Ga orogens: implications for a pre-Rodinia supercontinent
TL;DR: The existence of a supercontinent existing before Rodinia, referred to herein as Columbia, a name recently proposed by Rogers and Santosh [Gondwana Res. 5 (2002) 5] for a Paleo-Mesoproterozoic super-continent, was confirmed by available lithostratigraphic, tectonothermal, geochronological and paleomagnetic data as mentioned in this paper.
Journal ArticleDOI
Re-Os Ages of Group IIA, IIIA, IVA, and IVB Iron Meteorites
TL;DR: In this article, negative thermal ionization mass spectrometry with modified digestion and equilibration techniques was used to determine the rhenium and osmium concentrations and ratios of group IIA, IIIA, IVA, and IVB iron meteorites.
Journal ArticleDOI
Configuration of Columbia, a Mesoproterozoic Supercontinent
John J.W. Rogers,M. Santosh +1 more
TL;DR: A supercontinent, here named Columbia, may have contained nearly all of the earth's continental blocks at some time between 1.9 Ga and 1.5 Ga.
Journal ArticleDOI
Roasting the mantle: Slab melting and the genesis of major Au and Au-rich Cu deposits
TL;DR: In this article, the authors consider the removal of chalcophile elements from the mantle wedge into arc magmas can only occur if sulfide is absent from the melted source rock, requiring oxidation of the mantle surface to values of log f O 2 > FMQ + 2, where FMQ is the fayalite-magnetite-quartz oxygen buffer.
Journal ArticleDOI
A History of Continents in the past Three Billion Years
TL;DR: The end-Paleozoic Pangea appears to have contained three continents that had grown in the Precambrian and remained intact until Mesozoic rifting: Ur, formed at 3 Ga and accreted to most of East Antarctica in the middle Proterozoic to form East Gondwana; Arctica, an approximately 2.5-2 Ga continent that contained Archean terranes of the Canadian and Siberian shields and Greenland; and Atlantica formed at 2 Ga of cratons of ~2 Ga age that now occur in West Africa and