نتایج جستجو برای: thermobarometry

تعداد نتایج: 187  

رستمی‌حصوری, مجتبی, رضایی, مهدی, قاسمی, حبیب‌الله, مباشری, محسن, کاوان نانگ, پانگ,

In Reza-Abad area (E- Shahrood city), diabasic dikes swarm (gabbro / diorite) with trends east-west intruded into Pre-Cambrian igneous - metamorphic complex of Central Iran Zone. These rocks display intergranular, ophitic and subophitic textures. Clinopyroxen (augite to diopside), plagioclase (oligoclase-andesine and labradorite- bitonite) and amphibole (magnesia hornblende) are the main minera...

2013
S. Kidder

The accuracy, reliability and best practises of Tiin-quartz thermobarometry (TitaniQ) in greenschist facies rocks have not been established. To address these issues, we measured Ti concentrations in rutile-bearing samples of moderately deformed, partially recrystallized quartzite and vein quartz from the Hsüehshan range, Taiwan. The spread of Ti concentrations of recrystallized grains in quartz...

Journal: :Earth and Planetary Science Letters 2021

Sheltered inside crystals, mineral inclusions preserve crucial information on the geological history of our planet. These allow estimation pressure and temperature trajectories metamorphic rocks, but also can tell about rock mineralogy, provenance, geodynamic petrogenetic processes. This is recovered under axiom that have remained immutable objects do not change shape after their entrapment. Co...

Journal: :Journal of South American Earth Sciences 2021

The geological record of the eastern Sierras Pampeanas province, in modern Andean broken foreland Argentina can be divided into four main events: (1) Proterozoic to early Paleozoic collisional tectonics, (2) middle-late anorogenic magmatism, relief generation and glacial paleovalley formation followed by (3) a classical filling Permian two proximal alluvial sedimentation associated with Cretace...

2012

This virtual special issue represents a collection of papers concerning Crustal Melting selected by the Editor from those published on various aspects of this theme in the JMG since 1982. The papers are grouped into sequences that address topics that have been prominent in the JMG during the last 30 years concerning the origin, evolution and tectonic role of migmatites and migmatitic granulites...

توکسوی کوکسال, فاتما , درخشی, مرتضی , قاسمی, حبیب الله ,

Soltan Maidan Basaltic Complex consists of a thick succession of basaltic lavas associated with some thin sedimentary interlayers that are exposed in the northwest to northeast of Shahrood. Soltan Maidan basaltic rocks has been generated from magma with transitional to mildly alkaline nature and derived by 14-20 percent partial melting of an enriched garnet peridotitic mantle source in an intra...

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