Results 111 to 120 of about 14,109 (220)
Petrography and Petrology [PDF]
, 2002 This site is the home page for the petrography and petrology class at Brock University. The site presents general information about igneous petrology, nomenclature and classification information, modal and normative analysis, and the chemistry of igneous
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The geological-genetic model of Carlin type gold deposits
Литосфера, 2016 The Carlin type gold deposits (CTGD) presents large metasomatic bodies of jasperoids in carbonate host rocks, that contain finely dispersed submicroscopic gold in disseminated pyrite or marcasite.
A. V. Volkov, A. A. Sidorov
doaj +2 more sources
Highly Enriched and Heterogeneous Mantle Signals Recorded in Mantle Pyroxenite Veins
Geochemistry, Geophysics, Geosystems, Volume 27, Issue 8, August 2026.Abstract The Earth's mantle is inherently heterogeneous, reflecting ongoing mantle depletion and crustal recycling driven by plate tectonics. Radiogenic isotopes in oceanic basalts are commonly used to characterize mantle reservoirs, but the full chemical diversity of mantle‐derived melts may be obscured by magma mixing during melt transport and ...
Zhen‐Yu Zhang +8 more
wiley +1 more source
Microscopic sedimentary petrography, par A. V. Carozzi, 1960 [PDF]
, 1960 Christophe-Michel-Lévy Mireille. Microscopic sedimentary petrography, par A. V. Carozzi, 1960. In: Bulletin de la Société française de Minéralogie et de Cristallographie, volume 83, 4-6, 1960.
Christophe Michel-Lévy, Mireille
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Paleomagnetic dating of rocks of the Bolshesyrsky magmatic area of the Minusinsky basin
Вестник Камчатской региональной ассоциации "Учебно-научный центр". Серия: Науки о ЗемлеPaleomagnetic dating of the Bolshesyrsky igneous area, a thick intraplate igneous complex of Khakassia, was carried out. The complex has not been dated due to the peculiarities of the stratigraphy and the lack of suitable rocks for applying the methods ...
D.V. Kovalenko, M.V. Buzina
doaj +1 more source
Archaeometry, Volume 68, Issue 4, Page 659-673, August 2026.ABSTRACT The hillfort of Castrejón de Capote is one of the best investigated settlements of Late Iron Age southwest Iberia. Located in the territory that the classical sources attributed to the Celtici, it was occupied between the early 4th and the 1st centuries bce.
Beatrijs de Groot +2 more
wiley +1 more source
Ductile Extrusion Triggered by Continental Collision in NE Brazil
Terra Nova, Volume 38, Issue 4, Page 266-277, August 2026.ABSTRACT The Borborema Province in northeastern Brazil hosts one of the world's largest strike‐slip shear zone networks, active during the late Neoproterozoic assembly of West Gondwana. Whether these shear zones initiated during active continental collision or as a post‐orogenic response to far‐field stresses remains debated.
L. R. Tesser +6 more
wiley +1 more source
Russian Journal of Earth SciencesThe article presents the results of a comprehensive analysis of fault tectonics in the north-western part of the Verkhoyan-Kolyma orogenic region. The studies were performed on a regional scale. Based on a digital relief model, lineaments were identified
Minaev Vasilii +6 more
doaj +1 more source
Petrography and geochemistry of Ahwaz Sandstone Member of Asmari Formation, Zagros, Iran: implications on provenance and tectonic setting [PDF]
, 2008 An integrated petrographic and geochemical study of the Ahwaz Sandstone Member of OligoceneMiocene age, Asmari Formation in Zagros, southwest Iran, was carried out to infer their provenance and tectonic setting.
Of Ahwaz Sandstone +2 more
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General geology and petrography of ignimbrite in Temangan, Machang, Kelantan. [PDF]
, 2017 Geological research including lithology, geological structure, geomorphology, stratigraphy and petrology in Temangan, Machang, Kelantan. The study area have longitude 102˚8’30” to 102˚10’30” and the latitude 05˚38’30” to 05˚40’30”.
Muhammad Jasman Salwisol,
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