Results 61 to 70 of about 10,528 (232)
Yankuang ceshi, 2013 The Tuosibasitao Fe-Cu-Au mineral deposit mainly occurs in the contact zone between the diorite porphyrite and basaltic volcanic rock of Middle Devonian Beitashan Formation in the forms of massives, heterogeneous gobbets, veinlets, breccia and veinlet ...
LV Shu-jun +4 more
doaj
Bulletin of the Mineral Research and Exploration, 2019 Dağbaşı skarn cevherleri Üst Kretase yaşlı Dağbaşı granitoyidi ile Liyas volkanitleri içindeki kireçtaşı blok ve merceklerinin granitoyide en yakın olduğu zonlar boyunca ekzoskarn tipte gelişmiştir.
Yılmaz DEMİR
doaj +1 more source
Journal of Metamorphic Geology, Volume 43, Issue 7, Page 681-705, September 2025.ABSTRACT To gain insights into the pressure–temperature evolution of a scarcely studied portion of the Variscan basement of Corsica in southern Europe, we combined phase equilibrium modelling, Zr‐in‐rutile thermometry and apatite‐in‐garnet elastic barometry. We investigated Grt‐St micaschist rocks containing garnet grains of several millimetres in size
Lorenzo Dulcetta +6 more
wiley +1 more source
Zonación mineral vinculada a procesos geoquímicos en el skarn San Miguel, Sierras Septentrionales, provincia de Buenos Aires [PDF]
, 2013 El skarn San Miguel, situado en cercanías de la localidad de Barker, es uno de los dos skarns reconocidos en el ámbito de las Sierras Septentrionales de la provincia de Buenos Aires.
Etcheverry, Ricardo O. +3 more
core
Meteoritics &Planetary Science, Volume 60, Issue 9, Page 1953-1969, September 2025.Abstract Multiple generations of calcite and dolomite precipitated in CM chondrites during ice melting events that led to episodes of liquid water. Models and laboratory analysis have suggested a long‐term transition from oxidizing to reducing conditions during aqueous alteration on the CM parent body.
Elizabeth Bailey +3 more
wiley +1 more source
A Summary of gold fineness values from Alaska placer deposits [PDF]
, 1981 This report is the first in a series of publications by the Mineral Industry Research Laboratory and the Alaska Division of Geological and Geophysical Surveys under a special appropriation by the Alaska State Legislature to the School of Mineral Industry
Hawkins, D.B., Metz, P.A.
core
Journal of Geophysical Research: Solid Earth, Volume 130, Issue 8, August 2025.Abstract To date, the generation of natural hydrogen (H2) from the alteration of FeII‐bearing minerals has mainly been studied through serpentinization in (ultra)mafic rocks. This study explores Banded Iron Formations (BIF), which are rich in FeII minerals, as a potential source for H2.
U. Geymond +5 more
wiley +1 more source
Características mineraloquímicas e implicancias genéticas de la Vesubianita del Skarn Loma Marcelo, sierras australes de Buenos Aires [PDF]
, 2013 Fil: Ballivián Justiniano, Carlos A.. Instituto de Recursos Minerales (INREMI). Facultad de Ciencias Naturales y Museo. Universidad Nacional de La Plata; ArgentinaFil: Lajoinie, María Florencia. Instituto de Recursos Minerales (INREMI).
Ballivián Justiniano, Carlos A. +4 more
core
Journal of Geophysical Research: Solid Earth, Volume 130, Issue 8, August 2025.Abstract Correlation of ignimbrite units at polygenic calderas is mandatory for the reconstruction of caldera‐forming events and proper identification of their eruption dynamics. However, ignimbrites erupted at different times from the same caldera can display similarities in composition and lithology that can hamper proper correlation of outcrops ...
Arianna Beatrice Malaguti +5 more
wiley +1 more source
Petrology and Geochemistry of the Qozlou Granitoid and Related Fe skarn (west Zanjan)
Journal of Economic Geology, 2020 Introduction Fe skarn deposits are one of the important Fe deposits in the Zanjan province which have been exploited in recent years. The Qozlou Fe deposit is one of these Fe skarn deposits which is located at 65 km west of Zanjan.
Neda Shafaiepour +3 more
doaj +1 more source