Results 91 to 100 of about 9,976 (268)

The geology and geophysics of the Oslo rift [PDF]

The regional geology and geophysical characteristics of the Oslo graben are reviewed. The graben is part of a Permian age failed continental rift. Alkali olivine, tholefitic, and monzonitic intrusives as well as basaltic lavas outline the extent of the ...
Ruder, M. E.
core   +1 more source

Recent Advances in the Compositional and Mapping Analysis of Iron Meteorites Using a Handheld Laser‐Induced Breakdown Spectroscopy Instrument

Geostandards and Geoanalytical Research, Volume 48, Issue 4, Page 837-862, December 2024.
Key points Methodological protocol for field‐based handheld LIBS for qualitative and quantitative analysis of iron meteorites. Good agreement was achieved between handheld LIBS measurement results and reference data for Fe, Ni, Co, and Cu. Handheld LIBS can achieve preliminary chemical identification and classification of iron meteorites including ...
Giorgio S. Senesi, Olga De Pascale, Sara Mattiello, Vanni Moggi Cecchi, Abderrahmane Ibhi, Lahcen Ouknine, Hassan Nachit   +6 more
wiley   +1 more source

Geotectonic model of the Alpine development of Lakavica graben in the eastern part of the Vardar zone in the Republic of Macedonia [PDF]

, 2013
Lakavica graben is located in the eastern subzone of the Vardar zone, which during the Alpine orogenesis was covered with very complex processes of tectogenesis.
Dimov, Gorgi, Petrov, Gose, Stojanova, Violeta   +2 more
core   +1 more source

Microscopic slickenside as a record of weak shock metamorphism in the surface layer of asteroid Ryugu

Meteoritics &Planetary Science, Volume 59, Issue 12, Page 3181-3192, December 2024.
Abstract The surface morphology of regolith grains from the C‐type asteroid Ryugu was studied in search of evidence of impact events on the asteroid. Scanning electron microscopy revealed that ~8% of C0105‐042 Ryugu grains have a smooth surface on one side of the grains. One of these grains has striated linear grooves (striations) on its smooth surface.
Masaaki Miyahara, Takaaki Noguchi, Toru Matsumoto, Naotaka Tomioka, Akira Miyake, Yohei Igami, Yusuke Seto, Mitsutaka Haruta, Hikaru Saito, Satoshi Hata, Hope A. Ishii, John P. Bradley, Kenta K. Ohtaki, Elena Dobrică, Hugues Leroux, Corentin Le Guillou, Damien Jacob, Francisco de la Peña, Sylvain Laforet, Bahae‐Eddine Mouloud, Maya Marinova, Falko Langenhorst, Dennis Harries, Pierre Beck, Thi H. V. Phan, Rolando Rebois, Neyda M. Abreu, Jennifer Gray, Thomas Zega, Pierre‐M. Zanetta, Michelle S. Thompson, Rhonda Stroud, Kate Burgess, Brittany A. Cymes, John C. Bridges, Leon Hicks, Martin R. Lee, Luke Daly, Phil A. Bland, Michael E. Zolensky, David R. Frank, James Martinez, Akira Tsuchiyama, Masahiro Yasutake, Junya Matsuno, Shota Okumura, Itaru Mitsukawa, Kentaro Uesugi, Masayuki Uesugi, Akihisa Takeuchi, Mingqi Sun, Satomi Enju, Aki Takigawa, Tatsuhiro Michikami, Tomoki Nakamura, Megumi Matsumoto, Yusuke Nakauchi, Masanao Abe, Satoru Nakazawa, Tatsuaki Okada, Takanao Saiki, Satoshi Tanaka, Fuyuto Terui, Makoto Yoshikawa, Akiko Miyazaki, Aiko Nakato, Masahiro Nishimura, Tomohiro Usui, Toru Yada, Hisayoshi Yurimoto, Kazuhide Nagashima, Noriyuki Kawasaki, Naoya Sakamotoa, Ryuji Okazaki, Hikaru Yabuta, Hiroshi Naraoka, Kanako Sakamoto, Shogo Tachibana, Sei‐ichiro Watanabe, Yuichi Tsuda   +79 more
wiley   +1 more source

Ring-shape and linear gold mining districts of zimbabwe: estimation of residual gold resources

Известия высших учебных заведений: Геология и разведка
Background. Despite the long history of exploitation and study of Zimbabwe’s geological potential, the ranks of gold ore formations at the level of regions and fields remain unclear. Assessment of the residual primary gold deposits in Zimbabwe appears an
P. A. Ignatov, S. A. Malyutin, A. A. Ivanov, A. S. Desyatkin, M. M. Lanchak   +4 more
doaj   +1 more source

Lead isotope variations across terrane boundaries of the Tien Shan and Chinese Altay [PDF]

, 2018
The Altaid orogen was formed by aggregation of Paleozoic subduction-accretion complexes and Precambrian basement blocks between the Late Proterozoic and the Early Mesozoic.
Chiaradia, Massimo, Cliff, Robert, Konopelko, Dmitry, Seltmann, Reimar   +3 more
core  

Metallogeny of the marginal sea lithosphere (Northeast Russia)

Литосфера, 2015
Metallogenic model of the margin sea lithosphere is a complex combination of rejuvenated mineralization of the Precambrian basement terrains, of different types of sulfidized zones Verkhoyansk (Pz-J) sedimentary formations and the post-magmatic ...
A. A. Sidorov, A. V. Volkov
doaj   +2 more sources

Geodynamics and Ore Content of Proterozoic Maphites in the Central Part of the Aldan-Stanovoy Shield (Southern North Asian Craton)

Геодинамика и тектонофизика
The study of diverse mantle-derived igneous complexes is important for interpreting geodynamic events, ore deposits formation mechanisms, and ore-forming fluid sources.
A. A. Kravchenko, A. V. Okrugin, V. I. Beryozkin, N. V. Popov, E. E. Loskutov   +4 more
doaj   +1 more source

Editorial: Tracing magmatic system evolution with geochemical, geophysical, and numerical modeling perspectives

Frontiers in Earth Science, 2023
Zhuang Li, Hafiz Ur Rehman
doaj   +1 more source

Crustal architecture and metallogeny associated with the Paleo-Tethys evolution in the Eastern Kunlun Orogenic Belt, Northern Tibetan Plateau

Geoscience Frontiers, 2023
Xinming Zhang, Xu Zhao, L. Fu, Yanjun Li, A. Kamradt, M. Santosh, Chongwen Xu, Xiaokun Huang, G. Borg, Jun-hao Wei   +9 more
semanticscholar   +1 more source