Results 21 to 30 of about 11,804 (209)

Provenance analysis of Sinian sediments on the northwestern margin of Tarim Basin and its restriction on basin types

Shiyou shiyan dizhi, 2020
The Neoproterozoic is a very important stage in the global tectonic evolution, which experienced the amalgamation and break-up of the Rodinia. The Nanhua and Sinian strata in the Tarim Basin, which is one of the three major craton basins, have recorded a
Hanlin CHEN, Weikang HUANG, Yong LI, Fengqi ZHANG, Hongxiang WU, Zhilin YANG, Shaoying HUANG, Shufeng YANG   +7 more
doaj   +1 more source

Zircon ages in granulite facies rocks: decoupling from geochemistry above 850 °C? [PDF]

, 2018
Granulite facies rocks frequently show a large spread in their zircon ages, the interpretation of which raises questions: Has the isotopic system been disturbed? By what process(es) and conditions did the alteration occur?
A Boriani, A Boriani, A Henk, A Langone, A Mulch, A Mulch, A Möller, A Zanetti, A Zingg, A Zingg, A-M Seydoux-Guillaume, AE Hofmann, B Bingen, B Schnetger, Barbara E. Kunz, BE Kunz, BE Kunz, C Annen, C Paton, C Paton, C Redler, C Redler, C Yakymchuk, CR McFarlane, CR McFarlane, D Regis, D Rubatto, D Rubatto, D Rubatto, D Rubatto, D Rubatto, Daniele Regis, DE Kelsey, DE Kelsey, DJ Cherniak, DJ Cherniak, DM Fountain, DM Fountain, E Rutter, EB Watson, EB Watson, EM Peterman, F Corfu, F Tomaschek, FJ Korhonen, G Bigi, G Fraser, G Peressini, G Rivalenti, G Rivalenti, G Vavra, G Vavra, GL Luvizotto, H Berckhemer, H Degeling, H Voshage, IS Williams, IS Williams, J Hermann, J Pape, J Sláma, JA Baldwin, JA Petrus, JE Quick, JE Quick, JF Diener, JW Valley, K Mezger, KR Mehnert, L Nasdala, L Nasdala, L Schiøtte, M Bertolani, M Bertolani, M Guillong, M Kohn, M Tichomirowa, MA Kusiak, MA Kusiak, Martin Engi, MJ Whitehouse, MP Roberts, MR Handy, MR Handy, NE Timms, NE Timms, NJ Pearce, NM Kelly, P Monjoie, P Vonlanthen, PW Hoskin, PW Hoskin, PW Hoskin, R Schuster, RC Ewing, RJ Taylor, RM Flowers, RT Pidgeon, S Barboza, S Barboza, S Bodorkos, S Capedri, S Piazolo, S Sinigoi, S Sinigoi, S Sinigoi, SE Jackson, SH Vorhies, SL Harley, SM Reddy, SM Schmid, SM Schmid, T Geisler, T Geisler, TA Ewing, U Schaltegger, U Schaltegger, U Schaltegger, U Schaltegger, US Klötzli, WF McDonough   +120 more
core   +1 more source

Dating the Sedimentary Protolith of the Daldyn Group Quartzite, Anabar Shield, Russia: New Detrital Zircon Constraints

Geosciences, 2020
Quartzites and paragneisses of the Archean granulite series of the Anabar Shield (Siberian Craton, Russia) are described geochemically. The Sm-Nd isotope systematics of the rocks and the U-Pb age (SHRIMP II) and geochemistry of zircons from quartzites ...
Nikolay I. Gusev, Lyudmila Yu. Sergeeva, Sergey G. Skublov   +2 more
doaj   +1 more source

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

Open 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, Yang Fanyan, Li Mingtao, Liang Zhirong, Ma Xuedong, Tian Jingxiong   +5 more
doaj   +1 more source

Detrital-zircon geochronology and sedimentary provenance [PDF]

Lithosphere, 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

Anomalous supply of bioessential molybdenum in mid-Proterozoic surface environments [PDF]

, 2016
We are grateful to A. Sandison and W. Thayalon for skilled technical support, and Mike Porter and an anonymous reviewer, who helped to clarify the manuscript.Peer ...
Lindgren, Paula, Parnell, John
core   +1 more source

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

Lithosphere, 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, Upasana S. Banerji, Chandra Prakash Dubey, Elson P. Oliveira   +3 more
doaj   +1 more source

Malignant melanoma of the urethra: a rare histologic subdivision of vulvar cancer with a poor prognosis [PDF]

, 2012
Malignant melanoma of the urethra is a rare tumour that is difficult to diagnose and treat, resulting in a poor prognosis. In this paper, we present the case of a 65-year-old woman who was referred to a gynaecologist because of a urethral mass that ...
Alkatout, Ibrahim, Altarac, Silvio, Cupic, Hrvoje, Fures, Rajko, Günther, Veronika, Hrgovic, Zlatko, Lez, Cvjetko, Mundhenke, Christoph, Persec, Zoran   +8 more
core   +2 more sources

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

Геодинамика 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

When do we need pan-global freeze to explain ^(18)O-depleted zircons and rocks? [PDF]

, 2011
Rocks with δ^(18)O values of less than 5‰ SMOW (Standard Mean Ocean Water) contain oxygen derived from ∼0‰ seawater or meteoric (rain or melted snow,
Bindeman, Ilya
core   +1 more source