Determining age of Pan African metamorphism using Sm-Nd garnet-whole rock geochronology and phase equilibria modeling in the Tasriwine ophiolite, Sirwa, Anti-Atlas Morocco
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DOI: 10.1016/j.jafrearsci.2016.06.021
Abstract: Abstract Sm-Nd garnet-whole rock geochronology and phase equilibria modeling have been used to determine the age and conditions of regional metamorphism within the Tasriwine ophiolite complex, Sirwa, Morocco. Pressure and temperature estimates obtained using a… read more here.
Keywords: whole rock; age; regional metamorphism; garnet ... See more keywords
A combined zircon Hf isotope and whole-rock Nd and Sr isotopes study of Carboniferous A-type granites, Sierras Pampeanas of Argentina
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DOI: 10.1016/j.jsames.2020.102545
Abstract: Abstract We report new whole-rock Nd and Sr isotope data for two strongly peraluminous and one slightly peraluminous Carboniferous A-type granitic plutons in the eastern Sierras Pampeanas of Argentina. Our study also integrates previous petrological… read more here.
Keywords: whole rock; carboniferous type; sierras pampeanas; pampeanas argentina ... See more keywords
Crustal growth and reworking of Archean crust within the Rhyacian domains of the southeastern Guiana Shield, Brazil: Evidence from zircon U–Pb–Hf and whole-rock Sm–Nd geochronology
Sign Up to like & getrecommendations! Published in 2020 at "Journal of South American Earth Sciences"
DOI: 10.1016/j.jsames.2020.102740
Abstract: Abstract The southeastern Guiana Shield, northern Amazonian Craton, is part of a Paleoproterozoic orogenic belt that was built up during the Transamazonian orogenic cycle (2.26–1.95 Ga). This cycle includes large segments of Rhyacian juvenile crust and… read more here.
Keywords: whole rock; zircon; crust; guiana shield ... See more keywords
Composite basement along the southern margin of the North Australian Craton: Evidence from in-situ zircon U-Pb-O-Hf and whole-rock Nd isotopic compositions
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DOI: 10.1016/j.lithos.2018.11.006
Abstract: Abstract Hafnium-isotope compositions of emplacement-age zircon grains are integrated with zircon δ18O and whole-rock Nd-isotope data in order to characterise the age and composition of the sources of Paleoproterozoic granites along the southern margin of… read more here.
Keywords: southern margin; north australian; margin north; along southern ... See more keywords
Petrogenesis of A-type granites associated with Sn–Nb–Zn mineralization in Ririwai complex, north-Central Nigeria: Constraints from whole-rock Sm Nd and zircon Lu Hf isotope systematics
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DOI: 10.1016/j.lithos.2019.05.003
Abstract: Abstract We report a combined study of whole-rock major- and trace-element geochemistry, Sm Nd isotope composition, zircon U/Pb dating, and Lu Hf systematics of peralkaline and aluminous A-type granites from the Ririwai Ring Complex in… read more here.
Keywords: type granites; zircon; systematics; whole rock ... See more keywords
Magma plumbing system for the Millennium Eruption at Changbaishan volcano, China: Constraints from whole-rock U–Th disequilibrium
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DOI: 10.1016/j.lithos.2020.105564
Abstract: Abstract A caldera-forming eruption in 946 CE, known as the Millennium Eruption (ME), at Changbaishan (or Baekdusan) volcano, located on the border between China and North Korea, was one of the largest explosive eruptions on Earth… read more here.
Keywords: whole rock; system; eruption; magma ... See more keywords
Monazite Behaviour and Time-scale of Metamorphic Processes along a Low-pressure/High-temperature Field Gradient (Ryoke Belt, SW Japan)
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DOI: 10.1093/petrology/egy056
Abstract: Low-pressure/high-temperature metamorphic rocks exposed in the western part of the Ryoke belt (Iwakuni–Yanai area, SW Japan) include a section with increasing temperature conditions from 425 to 880 C. We use this setting to explore the… read more here.
Keywords: whole rock; petrology; temperature; high temperature ... See more keywords
Whole-rock geochemistry tracks precessional control of Pleistocene lake salinity at Olduvai Gorge, Tanzania: A record of authigenic clays
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DOI: 10.1130/g38950.1
Abstract: The paleoclimatic framework of human evolution is central to the study of human origins. Olduvai Gorge, Tanzania, has a rich paleontological record, including four hominin species. We analyzed 177 mudstone samples from a lacustrine section,… read more here.
Keywords: whole rock; record; olduvai gorge; geochemistry ... See more keywords
Zircon U–Pb Geochronology, Whole-Rock Geochemistry and Petrogenesis of Biotite Granites in the Gaudeanmus Area, Namibia
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DOI: 10.3390/min10010076
Abstract: The Gaudeanmus area is located at the southern Central Zone of the Damara orogenic belt in south-western Africa. In this paper, we investigate the whole rock major and trace element compositions and Sr–Nd–Pb isotopic compositions… read more here.
Keywords: whole rock; biotite granite; geochemistry; gaudeanmus area ... See more keywords
Predictive Models of Mineralogy from Whole-Rock Assay Data: Case Study from the Productora Cu-Au-Mo Deposit, Chile
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DOI: 10.5382/econgeo.2019.4650
Abstract: Mineralogy is a fundamental characteristic of a given rock mass throughout the mining value chain. Understanding bulk mineralogy is critical when making predictions on processing performance. However, current methods for estimating complex bulk mineralogy are… read more here.
Keywords: productora deposit; geochemistry; whole rock; bulk mineralogy ... See more keywords