Results 21 to 30 of about 99,443 (295)

Study on the Re-Os Isotope Composition of Graphite from the Lutang Graphite Deposit in Hunan Province

Yankuang ceshi, 2017
Graphite has relatively high Re and Os contents and is an ideal mineral for Re-Os isotope dating. However, there are few studies on Re-Os dating of graphite.
LI Chao, WANG Deng-hong, ZHOU Li-min, ZHAO Hong, LI Xin-wei, QU Wen-jun   +5 more
doaj   +1 more source

Re-Os Isotope Dating of the Natural Micro/Nano Silicon-Carbon Deposit in Fengcheng City, Jiangxi Province

Yankuang ceshi, 2023
BACKGROUNDThe micro/nano silicon-carbon deposit in Fengcheng City, Jiangxi Province, is the first sedimentary deposit mineralized by phytoliths in the world.
Xin WAN, Xianguang WANG, Zhenghua HU, Yuru XIAO, Qiuping HU, Pengchao SHI, Yongwen ZHANG, Zenghui FENG   +7 more
doaj   +1 more source

Research Progress on Re-Os Isotopes Application in Dating and Paleoenvironmental Interpretation during the Neoproterozoic to Early Cambrian Periods

Yankuang ceshi, 2016
The Neoproterozoic to Early Cambrian period is a very important era in the history of earth evolution. Research on stratigraphic framework, paleo-oceanography, palaro-atmospheric, and paleoclimatology are focuses of international geosciences.
WANG Fu-liang, FU Yong, JIANG Ran, ZHOU Wen-xi, GE Zhi-hua, WEI Shuai-chao, LIANG Hou-peng, ZHANG Peng   +7 more
doaj   +1 more source

Archaean and Proterozoic diamond growth from contrasting styles of large-scale magmatism [PDF]

, 2017
Precise dating of diamond growth is required to understand the interior workings of the early Earth and the deep carbon cycle. Here we report Sm-Nd isotope data from 26 individual garnet inclusions from 26 harzburgitic diamonds from Venetia, South Africa.
Chinn, Ingrid L., Davies, Gareth R., Gress, Michael U., Harris, Jeff W., Jelsma, Hielke A., Koornneef, Janne M.   +5 more
core   +8 more sources

The age of mineralization of Mayskoe gold ore deposit (Central Chukotka): results of Re-Os isotopic dating

Записки Горного института, 2020
The article presents the results of the sulfide mineralization dating of the Mayskoe gold ore deposit using the Re-Os isotope system and isochron age estimation method of the main sulfide minerals: arsenopyrite, pyrite, and antimonite.
Dmitry S. Artemiev, Robert Sh. Krymsky, Boris V. Belyatsky, Dmitry S. Ashikhmin   +3 more
doaj   +1 more source

Mineralization age and genesis of the makeng-style iron deposits in the Paleo-Pacific tectonic domain of South China: In situ LA-ICPMS garnet U-Pb chronological and geochemical constraints

Frontiers in Earth Science, 2023
To reveal the genesis of Makeng-style iron polymetallic deposits from SE China in the paleo-Pacific tectonic domain, a new analytical method of LA-ICPMS garnet U-Pb dating and rare Earth element analysis was conducted for the Makeng, Luoyang, Dapai and ...
Sen Wang, Sen Wang, Sen Wang, Ke Cao, Da Zhang, Jin-Jun Yi, Bo-Jie Hu, Jing Yang, Jing Yang, Jing Yang, Meng-Ying Cai, Yao-Yao Zhang, Yuan Yuan, Tian-Wang Pan   +13 more
doaj   +1 more source

Improving the 14c dating of marine shells from the Canary Islands for constructing more reliable and accurate chronologies [PDF]

, 2012
Radiocarbon dating of closely associated marine mollusk shells and terrestrial material (charred wood or bone) collected from archaeological contexts on Tenerife and Fuerteventura islands allowed us to quantify the marine C-14 reservoir effect (Delta R ...
Acosta, Arco Aguilar, Arco Aguilar, Arco Aguilar, Jiménez Sánchez, Longin, Machado Yanes, Martín Rodriguez, Martín Socas, Martín Socas, Reimer, Soares, Soares, Wooster, Álvarez Delgado   +14 more
core   +1 more source

LEGUS and Halpha-LEGUS Observations of Star Clusters in NGC 4449: Improved Ages and the Fraction of Light in Clusters as a Function of Age [PDF]

, 2020
We present a new catalog and results for the cluster system of the starburst galaxy NGC 4449 based on multi-band imaging observations taken as part of the LEGUS and Halpha-LEGUS surveys.
Adamo, A., Aloisi, A., Calzetti, D., Chandar, R., Cignoni, M., Cook, D., Dale, D., Elmegreen, B. G., Gouliermis, D., Grasha, K., Grebel, E. K., Johnson, K. E., Kim, H., Lee, J., Sacchi, E., Smith, L. J., Tosi, M., Ubeda, L., Whitmore, B. C., Wofford, A.   +19 more
core   +2 more sources

Re-Os Isotopic Age of Molybdenite from the Xiaobaishi W-(Mo) Deposit, Eastern Tianshan, Xinjiang and Its Geological Implication

Yankuang ceshi, 2019
BACKGROUND The Xiaobaishitou W-(Mo) deposit is located in the Central Tianshan Massif of the Eastern Tianshan, Northwestern China. The deposit is a skarn-type tungsten-molybdenum deposit formed by biotite granite and granodiorite intruding into the ...
LI Ning, YANG Fu-quan, LI Chao, ZHANG Zhi-xin, YANG Cheng-dong   +4 more
doaj   +1 more source

First in situ Re-Os dating of molybdenite by LA-ICP-MS/MS [PDF]

Mineralium Deposita, 2019
Conventional dating of molybdenite (187Re-187Os) provides one of few options for direct dating of sulfide mineralization. Unfortunately, in situ dating of molybdenite is considered unreliable due to intra-granular decoupling of 187Re-187Os. In this study, we developed a new analytical protocol for studies of micron- to grain scale 187Re-187Os ...
K. Johan Hogmalm, Isabell Dahlgren, Irma Fridolfsson, Thomas Zack   +3 more
openaire   +1 more source