Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Akhtar R. Mir"'
Autor:
Akhtar R. Mir
Publikováno v:
Geochemistry and Mineral Resources
Precambrian mafic magmatism and its role in the evolution of Earth’s crust has been paid serious attention by researchers for the last four decades. The emplacement of mafic dyke swarms acts as an important time marker in geological terrains. Numbe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a6f17556e6ff00b7e0514239a7be8f18
https://mts.intechopen.com/articles/show/title/proterozoic-newer-dolerite-dyke-swarm-magmatism-in-the-singhbhum-craton-eastern-india
https://mts.intechopen.com/articles/show/title/proterozoic-newer-dolerite-dyke-swarm-magmatism-in-the-singhbhum-craton-eastern-india
Publikováno v:
Journal of Sedimentary Environments. 5:399-413
Shales and sandstones of the Paleoproterozoic Bijawar Group (India) have been studied to decipher their paleo-weathering conditions and provenance based on geochemistry. Shale samples are composed of k-feldspars, mica, quartz, and fine iron-oxides, w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::84ffa353e92219588034521304133956
https://doi.org/10.1007/s43217-020-00024-5
https://doi.org/10.1007/s43217-020-00024-5
Publikováno v:
Journal of the Geological Society of India. 94:351-358
The Dalma metavolcanic belt is composed of ultramafics at the base, tuffs on top and basalts in-between. It extends for about 200kms east-west in the middle of the Proterozoic Singhbhum Mobile Belt. Ultramafics are chiefly composed of actinolite, hor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dee908d57084132828c4a220dd60f710
https://doi.org/10.1007/s12594-019-1322-6
https://doi.org/10.1007/s12594-019-1322-6
Publikováno v:
Acta Geochimica. 35:428-436
The geochemical characteristics of two sections—the Permian–Triassic boundary (PTB) Guryul Ravine section, Kashmir Valley, Jammu and Kashmir, India; and the Attargoo section, Spiti Valley, Himachal Pradesh, India—have been studied in the contex
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4fdf57e41989608360553c5b3f03ed42
https://doi.org/10.1007/s11631-016-0107-5
https://doi.org/10.1007/s11631-016-0107-5
Autor:
Akhtar R. Mir
Publikováno v:
Chinese Journal of Geochemistry. 34:401-409
In the present study, trace element (including rare earth element) chemical data has been interpreted with the aim to decipher the tectonic setting and paleo-redox conditions of the Post- to Neo-archean shales from the Singhbhum Mobile Belt, eastern
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1afc878a2cb74292ff19dda46e4be8ca
https://doi.org/10.1007/s11631-015-0052-8
https://doi.org/10.1007/s11631-015-0052-8
Publikováno v:
Chinese Journal of Geochemistry. 34:241-251
The high-Mg mafic dykes from the Singhbhum Granitoid Complex in East India have geochemical characteristics [e.g., enrichment of the large ion lithophile elements and light rare earth elements (LREEs) relative to high field strength elements (HFSEs):
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::023387f16c5fbacc0af59776caa658c2
https://doi.org/10.1007/s11631-015-0044-8
https://doi.org/10.1007/s11631-015-0044-8
Autor:
Vysetti Balaram, Akhtar R. Mir, K. Anbarasu, Manavalan Satyanarayanan, Ali Mohammed Dar, S. N. Charan, D.V. Subba Rao
Publikováno v:
Journal of Geology and Mining Research. 6:18-27
Present paper deals with the petrogenesis of gabbros and pyroxenites of Bhavani complex, Tamil Nadu, Southern India. Studied gabbros are mainly composed of pyroxenes with minor plagioclase (An10-30) and amphibole minerals. Pyroxenites are composed of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::351aec9b442330a2615aa6b5edaf6a3b
https://doi.org/10.5897/jgmr14.0197
https://doi.org/10.5897/jgmr14.0197
Publikováno v:
Arabian Journal of Geosciences. 7:2237-2248
The paper presents the uranium (U) concentration and distribution pattern in the Paleoproterozoic phosphorites of Lalitpur district of Uttar Pradesh. The study of thin sections, SEM and XRD reveal that apatite is the essential phosphate mineral while
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2a5ce3c0663edc2c80d8753b92dcba41
https://doi.org/10.1007/s12517-013-0903-8
https://doi.org/10.1007/s12517-013-0903-8
Publikováno v:
International Journal of Scientific Research. 3:185-188
Studied black shales from Singhbhum Mobile Belt (SMB), eastern India are enriched in chalcophile elements such as Cu, Ni, Co, V and Cr and radioactive elements such as Th and U relative to North American Shale Com- posite (NASC). Their chondrite norm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5ecdc7e70fa5ceb17745ecbb9afbad45
https://doi.org/10.15373/22778179/jan2014/59
https://doi.org/10.15373/22778179/jan2014/59
Publikováno v:
Arabian Journal of Geosciences. 4:933-943
Singhbhum granitoid complex has been intruded by numerous mafic dykes trending in different directions. The studied dykes were originated from subalkaline magma, ranging in composition from basalt through basaltic-andesite to andesite. In the present
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::56dc0d8fba515037c5c178f342e2ed5f
https://doi.org/10.1007/s12517-010-0121-6
https://doi.org/10.1007/s12517-010-0121-6