Results 211 to 220 of about 1,197 (262)

Agriculture along the upper part of the Middle Zarafshan River during the first millennium AD: A multi-site archaeobotanical analysis. [PDF]

PLoS One
Mir-Makhamad B, Lurje P, Parshuto V, Pulotov A, Aminov F, Shenkar M, Saidov M, Semenov N, Kurbanov S, Mirzaakhmedov S, Rakhmanov K, Dal Martello R, Spengler R.   +12 more
europepmc   +1 more source

Late Pleistocene Volcanic Rocks From Tengchong Volcanic Field at SE Tibetan Plateau: Constraints on Petrogenesis and Mantle and Crustal Processes

Geological Journal, EarlyView.
Early zircon saturation and crystallisation occur in mafic (52–54 wt.% SiO2) lavas at Tengchong volcanic field. These early formed zircons with high δ18O (6.6‰–7.9‰) indicates mantle enrichment by subducted supracrustal materials. ABSTRACT Late Pleistocene (< 0.2 Ma) mafic and evolved volcanic rocks occur in northern Tengchong Volcanic Field, SE ...
Lizhu Wang, Haibo Zou
wiley   +1 more source

Neanderthal coasteering and the first Portuguese hominin tracksites. [PDF]

Sci Rep
de Carvalho CN, Cunha PP, Belo J, Muñiz F, Baucon A, Cachão M, Figueiredo S, Buylaert JP, Galán JM, Belaústegui Z, Cáceres LM, Zhang Y, Ferreira C, Rodríguez-Vidal J, Finlayson S, Finlayson G, Finlayson C.   +16 more
europepmc   +1 more source

Magmatic-hydrothermal fluid evolution of the tin-polymetallic metallogenic systems from the Weilasituo ore district, Northeast China. [PDF]

Sci Rep
Gao X, Zhou Z, Breiter K, Mao J, Romer RL, Cook NJ, Holtz F.   +6 more
europepmc   +1 more source

Combining Paleomagnetic and Re‐Os Isotope Data to Date Hydrocarbon Generation and Accumulation Processes

Journal of Geophysical Research: Solid Earth, 2023
AbstractUnraveling the complex relationship between orogenesis and hydrocarbon formation and accumulation is challenging and is often hampered by physical and chemical overprints of younger events. The Permian reservoir in the Longmen Shan orogen, South China, is such an example, and its evolution has been hotly debated.
Jing Hu, Yong Zhang, Dong Jia, Adrian Muxworthy, David Selby, Yongxiang Li, Matthew J. Brzozowski, Guoqi Wei, Jian Cao, Hongwei Yin, Wei Li   +10 more
openaire   +3 more sources

Simplified method for the Re–Os dating of molybdenite using acid digestion and isotope dilution ICP-MS

Analytica Chimica Acta, 2002
Abstract An analytical method was developed for Os–Re dating of molybdenite. The method is based on determination of Os and Re concentrations in molybdenite by isotope dilution inductively-coupled plasma mass spectrometry (ID-ICP-MS). Sample digestion and sample/spike equilibration were achieved by a two-stage autoclave-based procedure using a ...
Dmitry Malinovsky, Ilia Rodushkin, Douglas Baxter, Björn Öhlander   +3 more
openaire   +2 more sources

Re-Os isotope system in organic-rich samples for dating and tracing: Methodology, principle, and application

Earth-Science Reviews, 2023
In the last three decades, significant progress has been made in the investigation of rhenium-osmium (Re-Os) isotopic system in organic-rich samples. The Re-Os geochronometer can provide precise absolute depositional ages of organic-rich sediments (ORS ...
Lu Yin, Peipei Zhao, Junjie Liu, Jie Li
openaire   +2 more sources

Advances in the analytical methods of metal sulfide Re-Os isotope dating

Acta Petrologica Sinica, 2022
Over the past 30 years, the analytic technique of Re-Os isotope of geological samples has been developed and improved constantly, including sample digestion, chemical separation, mass spectrometry determination and micro region analysis methods, and Re ...
SUN ShengLing, LI Jie, XU JiFeng, WANG GuiQin   +3 more
openaire   +2 more sources

Dating post-Archean lithospheric mantle: Insights from Re-Os and Lu-Hf isotopic systematics of the Cameroon Volcanic Line peridotites

Geochimica et Cosmochimica Acta, 2020
Abstract Highly depleted Archean peridotites have proven very amenable to Re-Os model age dating. In contrast, due to the increasing heterogeneity of mantle Os isotope compositions with time, the Re-Os system has not been as effective in dating post-Archean peridotites.
Liu, Jingao, Pearson, D. Graham, Shu, Qiao, Sigurdsson, Haraldur, Thomassot, Emilie, Alard, Olivier   +5 more
openaire   +4 more sources