Zobrazeno 1 - 10
of 11 237
pro vyhledávání: '"La icp ms"'
Autor:
Sherif Mansour, Noriko Hasebe, Kamal Abdelrahman, Mohammed S. Fnais, Mohamed A. Gharib, Rabiou Habou, Akihiro Tamura
Publikováno v:
Geochemical Transactions, Vol 25, Iss 1, Pp 1-23 (2024)
Abstract The magmatic complex along the Marsa Alam-Idfu transect, Central-Eastern Desert of Egypt, represents the northern segment of the Arabian–Nubian Shield (ANS), which developed within the framework of the East African Orogen. The basement roc
Externí odkaz:
https://doaj.org/article/fa2336b7d32243eb86c88dfb77b7a829
Publikováno v:
Petroleum Exploration and Development, Vol 51, Iss 5, Pp 1083-1096 (2024)
Based on the observation and analysis of cores and thin sections, and combined with cathodoluminescence, laser Raman, fluid inclusions, and in-situ LA-ICP-MS U-Pb dating, the genetic mechanism and petroleum geological significance of calcite veins in
Externí odkaz:
https://doaj.org/article/4af29105ee9947f9af81f47e08dade18
Publikováno v:
Heritage Science, Vol 12, Iss 1, Pp 1-15 (2024)
Abstract In addition to his astronomical observations the famous Renaissance astronomer Tycho Brahe (1546–1601) was known also for his interest in alchemy. He equipped his castle Uraniborg on the island of Ven with a state-of-the-art alchemical lab
Externí odkaz:
https://doaj.org/article/9b28f4b62bb6419789d15540016d0156
Autor:
Quan Wei, Lin Li, Sheng-Rong Li, M. Santosh, Masroor Alam, Zhen-Yu Chen, Min-Gang Li, Xiao-Dan Chen, Zi-Hao Wen, Jia-Wei Liu
Publikováno v:
Frontiers in Earth Science, Vol 12 (2024)
The Xiaoqinling gold province, located in the southern margin of the North China Craton (NCC), is the second largest gold-enriched region in China. In this region, the Mesozoic Huashan (HS) and Wenyu (WY) plutons are the major magmatic intrusions coe
Externí odkaz:
https://doaj.org/article/049501092d8a4ed2bd648253c79462d9
Autor:
Annamária Kis
Publikováno v:
Heliyon, Vol 10, Iss 18, Pp e38045- (2024)
Internal inhomogeneity of the zircon crystals makes it difficult to date succedent geological processes. To overcome this limitation, a four-step pre-examination method is suggested before LA-ICP-MS based in situ U-Pb age determination of zircon crys
Externí odkaz:
https://doaj.org/article/e0da348b0ec84b978094caca9c1cfd62
Publikováno v:
Bulletin of the Geological Society of Finland, Vol 96, Iss 1, Pp 5-34 (2024)
We present a geochemical dataset and cathodoluminescence images of apatite from the Neoarchean (2610 Ma) glimmerite-carbonatite rocks from the Siilinjärvi complex, Eastern Finland. The subhedral, tapered prismatic grains are compositionally fluorapa
Externí odkaz:
https://doaj.org/article/8a5d304196804763ac9fd92c67a744bd
Autor:
V. V. Silantiev, Ya. M. Gutak, M. Tichomirowa, A. V. Kulikova, A. S. Felker, M. N. Urazaeva, L. G. Porokhovnichenko, E. V. Karasev, A. S. Bakaev, V. V. Zharinova, M. A. Naumcheva
Publikováno v:
Georesursy, Vol 25, Iss 2, Pp 203-227 (2024)
Tonsteins, predominantly solid kaolinite clay interbeds, are widespread in the coals of the Kuznetsk Basin and usually contain idiomorphic zircon grains of magmatic origin in quantities suitable for uranium-lead (U-Pb) radiometric dating. For the fir
Externí odkaz:
https://doaj.org/article/adaff50026024ed7bfe3317018819150
Publikováno v:
地质科技通报, Vol 43, Iss 2, Pp 123-142 (2024)
Objective The Tongshanling deposit in the western Nanling metallogenic belt of Hunan Province is a skarn Cu polymetallic deposit related to Ⅰ-type granodiorite. Recently, a thick stratiform W-Mo skarn ore body has been found in the limestone of the
Externí odkaz:
https://doaj.org/article/d38039930ee9498984746236d2c30cb8
Autor:
Raquel Alonso-Perez, James M.D. Day, D. Graham Pearson, Yan Luo, Manuel A. Palacios, Raju Sudhakar, Aaron Palke
Publikováno v:
Artificial Intelligence in Geosciences, Vol 5, Iss , Pp 100085- (2024)
Emeralds – the green colored variety of beryl – occur as gem-quality specimens in over fifty deposits globally. While digital traceability methods for emerald have limitations, sample-based approaches offer robust alternatives, particularly for d
Externí odkaz:
https://doaj.org/article/024b17f7846d46cdada392bc2030ed6f
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