Zobrazeno 1 - 10
of 4 623
pro vyhledávání: '"U–Pb age"'
Publikováno v:
Geoscience Data Journal, Vol 11, Iss 4, Pp 562-572 (2024)
Abstract The Qinling‐Dabie‐Sulu orogen is the eastern part of the Central China Orogenic Belt. Looking back on previous studies of the sedimentary record we systematically compiled the dataset of detrital zircon U–Pb ages and Hf isotopes for th
Externí odkaz:
https://doaj.org/article/06d87117d2524982b824216e6e4436e3
Publikováno v:
Geoscience Data Journal, Vol 11, Iss 4, Pp 385-393 (2024)
Abstract Detrital zircon U–Pb chronology database of Precambrian deposits provides a context for the interpretation of the origin and evolution of ancient crust. Here, we tried to summarize the published literature containing detrital zircon U–Pb
Externí odkaz:
https://doaj.org/article/0a5f0febe19e4937b036bee386a81475
Publikováno v:
Geoscience Data Journal, Vol 11, Iss 4, Pp 405-413 (2024)
Abstract Complications of detrital zircons databases provide a means for statistically analysing a variety of significant geological problems. In this work, we tried to collect a database about the South China Phanerozoic detrital zircon geochronolog
Externí odkaz:
https://doaj.org/article/6eb92836752b4311b630dc4d3215c8ec
Publikováno v:
Geoscience Data Journal, Vol 11, Iss 4, Pp 426-432 (2024)
Abstract The Central Asian Orogenic Belt (CAOB) is one of the biggest accretionary orogens in the world. With the development of laser ablation‐inductively coupled plasma‐mass spectrometry (LA‐ICP‐MS), large data of detrital zircon U–Pb and
Externí odkaz:
https://doaj.org/article/afe0908cd8614d93ab65ea62c3930011
Publikováno v:
Progress in Earth and Planetary Science, Vol 11, Iss 1, Pp 1-26 (2024)
Abstract The most common age constraint for the diatomaceous sediments is biostratigraphy of siliceous microfossils. Although biostratigraphy is a powerful tool to establish stratigraphy and correlate with sedimentary sequences in other sites, biostr
Externí odkaz:
https://doaj.org/article/2b7690425bb94360aa1e9c4dff242c75
Autor:
Chun-Mei Liu, Hao Zou, Hai-Feng Chen, Chen-Wei Li, Nuru Said, Chang-Cheng Huang, Xing-Xing Mao, Hui-Dong Yu, Hua-Wen Cao, Xin-Yu Liu
Publikováno v:
Solid Earth Sciences, Vol 9, Iss 3, Pp 100198- (2024)
In this study, we report for the first time a new gabbro diorite, forming in an intraplate extensional environment during the Early Devonian, in the Shimian of the western margin of the Yangtze Block. Zircon SIMS U–Pb dating indicates that the gabb
Externí odkaz:
https://doaj.org/article/720e3c188701498391e8a79b7e16fb8d
Publikováno v:
Swiss Journal of Geosciences, Vol 117, Iss 1, Pp 1-33 (2024)
Abstract High-pressure and ultra-high-pressure metamorphic terrains display an internal architecture consisting of a pile (or stack) of several coherent tectonic thrust sheets or units. Their identification is fundamental for understanding the scale
Externí odkaz:
https://doaj.org/article/252f28799c08491cb5da52e490b5302a
Publikováno v:
Minerals, Vol 14, Iss 9, p 941 (2024)
This article focuses on zircon U-Pb isotope dating and a whole-rock elemental analysis of granodiorites, monzonitic granites, granodioritic porphyries, and alkali feldspar granites in the Yangmugang area of the Lesser Xing’an–Zhangguangcai Range.
Externí odkaz:
https://doaj.org/article/2996bfba93264ddda827ea9a8b891405
Publikováno v:
Геодинамика и тектонофизика, Vol 15, Iss 2 (2024)
The Upper Cambrian-Lower Ordovician terrigenous strata, unconformably overlying the Upper Riphean-Vendian rocks of the Timanide orogen in the north of the Urals, and contemporaneous bimodal volcanics and intrusive rocks are considered complexes marki
Externí odkaz:
https://doaj.org/article/9948f4d0d2f3416e8021405a2b264c11
Autor:
I. А. Izbrodin, А. G. Doroshkevich, А. V. Malyutina, D. V. Semenova, Т. А. Radomskaya, М. N. Kruk, I. R. Prokopyev, А. Е. Starikova, М. О. Rampilov
Publikováno v:
Геодинамика и тектонофизика, Vol 15, Iss 1 (2024)
Geochronological studies have been made on the main types of rocks from the Burpala alkaline massif and two gabbro and gabbro-diorite dikes located nearby. U-Pb LA-SF-ICP-MS zircon geochronology for the Burpala massif yielded a date of 294±2 Ma for
Externí odkaz:
https://doaj.org/article/528838c16db845e58f687a50fe7fb900