Results 21 to 30 of about 764 (194)

Detrital Zircons in Crustal Evolution: A Perspective from the Indian Subcontinent

open access: yesLithosphere, 2022
Detrital zircons are frequently used for crustal evolutionary studies as they sample vast regions of the continental crust. In the present study, we utilise newly compiled U-Pb detrital zircon data from the Indian subcontinent as well as a compilation of
Kumar Batuk Joshi   +3 more
doaj   +1 more source

U–Pb zircon dating of the Paleoproterozoic khondalite series in the northeastern Helanshan region and its geological significance

open access: yesOpen Geosciences, 2022
Petrography, zircon cathodoluminescence, and laser ablation-inductively coupled plasma mass spectrometry (LA-ICP-MS) U–Pb zircon dating were performed on the Paleoproterozoic khondalite series and the intrusive altered diabase dykes developed in the ...
Li Liming   +5 more
doaj   +1 more source

AGE AND PROVENANCE OF THE ARGUN SERIES SEDIMENTARY ROCKS OF THE ARGUN CONTINENTAL MASSIF: LA-ICP-MS U-Pb AGES OF DETRITAL ZIRCONS

open access: yesГеодинамика и тектонофизика, 2022
For the first time there were obtained LA-ICP-MS U-Pb age data on detrital zircons from sediments of the Bystraya and Ernichnaya formations of the Argun series of the northwestern Argun continental massif.
Yu. N. Smirnova, V. B. Khubanov
doaj   +1 more source

Detrital-zircon geochronology and sedimentary provenance [PDF]

open access: yesLithosphere, 2011
The article on sources of Paleozoic sediment in the Grand Canyon by [Gehrels et al. (2011)][1] in the June issue of Lithosphere illuminates progress in studies of sedimentary provenance, which have evolved dramatically during the past fifty years. During my dissertation research at Virginia Tech,
openaire   +1 more source

Detrital zircon of 4.1 Ga in South China [PDF]

open access: yesChinese Science Bulletin, 2012
One hadean zircon from the Cambrian sandstone in the southern part of South China has a U-Pb age of 4107±29 Ma with ɛ Hf(t) value similar to that of the homochronous depleted mantle and Hf model age of 4102±21 Ma. This demonstrates the existence of hadean crustal remnant in South China.
Xu, YaJun   +6 more
openaire   +1 more source

Methods of studying detrital zircons [PDF]

open access: yesМинералогия
This paper provides an overview of detrital zircon study methods from sample collection to the interpretation of geochronological and geochemical data.
E.E. Palenova, V.I. Vostretsov
doaj   +1 more source

Detrital Zircon Provenance in the Sediments in the Southern Okinawa Trough [PDF]

open access: yesJournal of Marine Science and Engineering, 2022
The provenance of sediments in the Southern Okinawa Trough since the late Holocene has been a controversial scientific issue during the past 20 years. Previous studies based on isotope proxies generally indicated Taiwanese rivers as the primary source in the Southern Okinawa Trough since the late Holocene.
Zhu, Bowen, Zeng, Zhigang
openaire   +2 more sources

In situ LA-ICPMS U-Pb dating of detrital zircons from the Cercadinho Formation, Minas Supergroup [PDF]

open access: yesGeologia USP. Série Científica, 2014
In this paper, new geochronological data obtained for the detrital rocks of the Cercadinho Formation, basal unit of the Piracicaba Group, Minas Supergroup, are presented.
Mônica de Cássia Oliveira Mendes   +3 more
doaj   +1 more source

AGE AND SOURCES OF DETRITAL MATERIAL FOR THE METASEDIMENTARY ROCKS OF THE NILAN TERRANE OF THE MONGOL-OKHOTSK OROGENIC BELT

open access: yesГеодинамика и тектонофизика, 2022
The paper presents the first results of U-Th-Pb (LA-ICP-MS) isotopic dating of detrital zircons from the Paleozoic (?) metasedimentary rocks of the Nilan Terrane of the Mongol-Okhotsk orogenic belt to refine the age estimates and determine their probable
V. A. Zaika   +3 more
doaj   +1 more source

Metamictization and chemical durability of detrital zircon

open access: yesAmerican Mineralogist, 2001
We have investigated the effect that metamictization has on the weathering of zircon in detrital continental sediments and tropical soils of the Amazon basin, Brazil. The degree of radiation damage in the near-surface region of the zircon grains was determined by Raman microprobe. In each of the four series investigated (i.e., sediment, podzol, topsoil,
Balan, Etienne   +5 more
openaire   +2 more sources

Home - About - Disclaimer - Privacy