Results 71 to 80 of about 8,675 (209)

Discovery of Blueschists in the Medvednica Mountain (Northern Croatia) and Their Significance for the Interpretation of the Geotectonic Evolution of the Area

Geologia Croatica, 2010
Blueschists were discovered in the metamorphic rocks of the Medvednica mountain. Two varieties of blueschists are recognised, one with garnets and another with omphacite.
Mirko Belak, Darko Tibljaš
doaj   +1 more source

Petrogenesis of ultramafic rocks with abyssal peridotite affinity from the Central Bundelkhand Craton, India

Geosystems and Geoenvironment
The Bundelkhand craton in India preserves important records of archean geological evolution, where several ultramafic rocks belonging to the Babina Greenstone Belt (BGB) occur as isolated and oval shaped bodies.
Abinash Sahu, Neeraj Vishwakarma, M. Santosh, Yamuna Singh, K.R. Hari   +4 more
doaj   +1 more source

Release of potassium from rock powder by the yeast Torulaspora globosa

Brazilian Archives of Biology and Technology, 2012
The alteration of minerals in rocks and the availability of elements for plant nutrition require long periods of time, and microorganisms are thought to induce the release of potassium and phosphate from rocks.
Márcia Maria Rosa-Magri, Simoni Helena Avansini, Maria Leonor Lopes-Assad, Sâmia Maria Tauk-Tornisielo, Sandra Regina Ceccato-Antonini   +4 more
doaj   +1 more source

Neoproterozoic ultramafic and mafic magmatism in the Eastern Cordillera of the central peruvian Andes: the Tapo Massif

, 2010
A highly dismembered assemblage of ultramafic and mafic rocks is exposed in the Eastern Cordillera of the Central Peruvian Andes, extending along a discontinuous NW-SE belt over some 250 km between 12° and 9° S of latitude.
Acosta, Jorge, Castroviejo Bolibar, Ricardo, Acosta Ale, Jorge Gilberto, Tassinari, Colombo G., Pereira, Eurico, Tassinari, Colombo Celso Gaeta, Rodrigues, José Feliciano, Rodrigues, Jose F.   +7 more
core  

Changing Sources of Magma Generation Beneath Intra-Oceanic Islands Arcs: An Insight From the Juvenile Kohistan Island Arc, Pakistan Himalaya

, 2006
The Kohistan arc, situated in the Pakistan Himalaya, is a Cretaceous intraoceanic island arc which was initiated during the northward movement of the Indian Plate. The arc was sutured to Asia at ca. 100 Ma.
Petford, Nick; id_orcid, Treloar, Peter J., Petford, Nick, Bignold, Stella M., Bignold, Stella   +4 more
core   +1 more source

Mafic and Ultramafic Rock Association in the East Arc of Sulawesi

Journal of Mathematical and Fundamental Sciences, 2019
Busur Timur Sulawesi, yang terdiri dari Sulawesi Timur dan Tenggara, sebagian besar ditempati oleh suatu komplek luas terdiri dari kelompok batuan ultramafic yang diperkirakan berumur Mososoik hingga Tersier Bawah.
R. Soeria Atmadja, J.P. Golightly, B.N. Wahju   +2 more
doaj  

Skeletal, microspinifex and harrisite textures in the Upper Paleozoic komatiitic sills and lavas from the Mashhad-Virani Complex, NE Iran

Journal of Economic Geology, 2019
Introduction The Mashhad- Virani complex has been sandwiched between the collided Lut block and Turan plate. This complex is composed of the following four units: 1) ultramafic-mafic rocks, 2) metamorphosed sedimentary rocks, 3) pyroclastic rocks and 4)
Mohsen Mobasheri, Habibollah Ghasemi, Behnam Rahimi, Mojtaba Rostami Hussory   +3 more
doaj   +1 more source

Plagioclasites from chromite-bearing ultramafic rocks of the Rai-Iz massif

Литосфера, 2016
The corundum-bearing and without-corundum plagioclasites from chromite-bearing ultramafic rocks of Rai-Iz massif were studied. Chemical composition of the rock-forming minerals and rock geochemical characteristics was determined.
N. V. Vakhrusheva, K. S. Ivanov, A. E. Stepanov, S. P. Shokalsky, A. N. Azanov, V. V. Hiller, P. B. Shiryayev   +6 more
doaj   +2 more sources

Geochemistry of podiform chromitite and host rocks within the Buem Structural Unit, Northwestern Benin Republic: Implications for the geodynamic evolution of the Dahomeyide orogenic belt

Results in Earth Sciences
The paper presents the geochemistry, origin and geodynamic setting of podiform chromitite and host rocks from the Buem Structural Unit (BSU) in the northwestern Benin Republic.
Daniel N. Kouagou N’Dah, Samuel B. Olobaniyi, Luc C. Adissin Glodji, Sory I.M. Konate, Elhadji Mory Traore, Daniel Kwayisi, Clement B. N’Satta, Ibrahim S. Yerima   +7 more
doaj   +1 more source

A Coupled Chemohydraulic Model of a Hydration Experiment

International Journal for Numerical and Analytical Methods in Geomechanics, Volume 50, Issue 10, Page 4284-4294, July 2026.
ABSTRACT This article presents a model for the hydration of periclase into brucite during water infiltration into a dry, pure periclase core. The hydration process proceeds in two stages. In Phase I, an infiltration front advances through the core while simultaneously triggering the hydration reaction.
Emmanuel Detournay, Vaughan Voller
wiley   +1 more source