Tectonics, Volume 43, Issue 6, June 2024.Abstract The rheology of crystalline units controls the large‐scale deformation geometry and dynamics of collisional orogens. Defining a time‐constrained rheological evolution of such units may help unravel the details of collisional dynamics. Here, we integrate field analysis, pseudosection calculations and in situ garnet U–Pb and mica Rb–Sr ...
A. Ceccato +4 more
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Occurrence and compositions of post-metamorphic alkali ～ highly potassic dykes intruded into metamorphic rocks on Lützow-Holm Complex, East Antarctica [PDF]
, 2016 第2回極域科学シンポジウム/第31回極域地学シンポジウム 11月17日（木） 国立極地研究所 ...
D.J.Du nkley +7 more
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Ancient Craton‐Wide Mid‐Lithosphere Discontinuity Controlled by Pargasite Channels
Geophysical Research Letters, Volume 51, Issue 9, 16 May 2024.Abstract The mechanisms governing a commonly observed seismic velocity drop in the cratonic lithosphere, referred to as the mid‐lithospheric discontinuity (MLD), have been widely debated. To identify the composition and seismic structure of MLDs, we have analyzed Sp receiver functions (SRF) and mantle xenocrysts for six regions across Australia.
Z. J. Sudholz +6 more
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Cenozoic granitoids in the Dinarides of southern Serbia: age of intrusion, isotope geochemistry, exhumation history and significance for the geodynamic evolution of the Balkan Peninsula [PDF]
, 2018 Two age groups were determined for the Cenozoic granitoids in the Dinarides of southern Serbia by high-precision single grain U-Pb dating of thermally annealed and chemically abraded zircons: (1) Oligocene ages (Kopaonik, Drenje, Željin) ranging from 31 ...
Cvetković, Vladica +6 more
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AnalectaThe presence of kimberlites in the Democratic Republic of Congo has been known since buttgenbach reported a typical ‘yellow ground’ in Katanga as early as 1908, and prospecting work before and after 1914 had already identified twenty-four pipes in ...
Onya Ngila Arnold +6 more
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Age and origin of proterozoic kimberlites and lamproites from the Dharwar Craton, southern India [PDF]
, 2012 This is a study of kimberlite and lamproite intrusions located in southern India within the Eastern Dharwar craton (EDC). Bulk-rock major-element, trace-element, REE- and Nd- isotopic data support previous studies that have classified the ultramafic ...
Osborne, Ian
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Experimental determination of Pb partitioning between sulfide melt and basalt melt as a function of P, T and X [PDF]
, 2016 © The Author(s), 2016. This is the author's version of the work and is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Geochimica et Cosmochimica Acta 185 (2016): 9-20, doi:10.1016/j.gca ...
Gaetani, Glenn A., Hart, Stanley R.
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Canyon Diablo lonsdaleite is a nanocomposite containing c/h stacking disordered diamond and diaphite. [PDF]
Philos Trans A Math Phys Eng Sci, 2023 Németh P, Garvie LAJ, Salzmann CG.
europepmc +1 more source
Petrogenesis of juvenile pelletal lapilli in ultramafic lamprophyres. [PDF]
Sci Rep, 2023 Prokopyev I +5 more
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ヒガシ ナンキョク ナピア オヨビ レイナー ガンタイ ニオケル ニホン ナンキョク チイキ カンソクタイ チシツ グループ ノ カツドウ セイカ ノ ソウカツ ト コンゴ ノ カダイ [PDF]
, 2003 東南極エンダビーランドに分布するナピア及びレイナー岩体を対象とした,日本南極地域観測隊地質グループによるこれまでの調査研究の成果として,1)野外調査による詳細な地質図の公表,2)ナピア岩体の原岩構成と形成年代の特定,3)超高温変成作用の変成条件と年代の精密解析,及び4)苦鉄質岩脈群の区分と活動時期の特定,の4項目について紹介した.これらの成果を踏まえた今後の同岩体の調査研究課題として,1)ナピア及びレイナー岩体のテクトニクスの解明: 新しい視点による広域調査の重要性,2)太古代大陸地殻の形成過程の解明 ...
Hideo Ishizuka, 石塚 英男
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