Results 71 to 80 of about 3,682 (259)
Petrological Evolution of the Upper Mantle Beneath the Southern Sanandaj-Sirjan Zone: Evidence from Kuhshah Peridotite Massif, Southeast Iran [PDF]
Journal of Sciences, Islamic Republic of Iran, 2014 The Kuhshah ultramafic complex is located in the south-east of Sanandaj-Sirjan metamorphic zone, near the probable remnants of Neotethys plate in Iran. It consists of highly depleted harzburgites, dunites, chromitite bands and altered gabbros.
H. Ahmadipour
doaj
Geosciences, 2018 Peridotites occur as lensoid bodies within the Mesoarchaean orthogneiss in the Akia terrane of Southern West Greenland. The Ulamertoq peridotite body is the largest of these peridotites hosted within the regional orthogneiss.
Juan Miguel Guotana +8 more
doaj +1 more source
Mineral chemistry and chromite mineralization in the Qaranaz-Alamkandi area, west Zanjan
Journal of Economic Geology, 2021 Introduction Malek Ghasemi and Karimzadeh Somarin (2005) reported that Chromite deposits in Iran occur in Paleozoic and Mesozoic ophiolite complexes in association with serpentinite and serpentinized peridotites and dunites (Ghazi et al., 2004; Shafaii ...
Parham Ahrabian Fard +4 more
doaj +1 more source
Ore Geology Reviews, 2014 Abstract Chromitites, associated with upper mantle peridotites of ophiolites from southeastern Turkey, are lenticular bodies or veinlets made up of massive, banded and disseminated chromite. Chromite shows a wide range of Cr# [Cr/(Cr + Al)] varying between 0.42 and 0.81, and Mg# [Mg/(Mg + Fe2 +)] of 0.45 to 0.75.
Akmaz, Recep Melih +2 more
openaire +3 more sources
RocMLMs: Predicting Rock Properties Through Machine Learning Models
Journal of Geophysical Research: Machine Learning and Computation, Volume 1, Issue 4, December 2024.Abstract Mineral phase transformations significantly alter the bulk density and elastic properties of mantle rocks and consequently have profound effects on mantle dynamics and seismic wave propagation. These changes in the physical properties of mantle rocks result from evolution in the equilibrium mineralogical composition, which can be predicted by ...
Buchanan Kerswell +4 more
wiley +1 more source
Metasomatic interactions between chromitite and anorthosite layers in the Sittampundi Complex, South India [PDF]
, 2021 Veni Sudarsan +2 more
openalex +1 more source
, 1979 The central issues in petrology have remained remarkably unchanged in the last 50 years. In igneous petrology, the focus is on understanding the nature and cause of diversity in igneous rocks: on identifying primary magma types and constraints on the ...
Stolper, Edward
core +1 more source
Near Surface Geophysics, Volume 22, Issue 5, Page 521-538, October 2024.Abstract Understanding near‐surface groundwater storage, flow patterns, surface and groundwater interactions in mining areas can assist in making mining more efficient and profitable. This is especially important in opencast mines affected by water inflows that may negatively affect production and increase mining costs. We map and characterize the near‐
Sikelela Gomo +8 more
wiley +1 more source
Subduction Zones of the Caribbean : the sedimentary, magmatic, metamorphic and ore-deposit records UNESCO/iugs igcp Project 546 Subduction Zones of the Caribbean [PDF]
, 2011 The International Union of Geosciences (IUGS) and UNESCO IGCP project 546 Subduction Zones of the Caribbean (http://www.ugr.es/~agcasco/igcp546/) was launched in 2007 and scheduled to be completed by the end of the current year 2011.
García-Casco, A. +2 more
core +6 more sources
Current Science, 2018 We have collected, processed and analysed the reflectance spectra of representative chromitite samples of spot type, clot type and disseminated type textural variants to understand the diagnostic spectral features of each of these samples. We have found that the reflectance spectrum of each textural variant is distinct from the spectra of other ...
Arindam Guha +4 more
openaire +1 more source