نتایج جستجو برای: diabasic dikes
تعداد نتایج: 976 فیلتر نتایج به سال:
An isotopically diverse suite of felsic dikes, sills, and plugs (εNd(t) = −7.8 to +7.8) intrude the uppermost mantle lower crust in Samail ophiolite Oman United Arab Emirates (UAE). These features have been interpreted represent amphibolite metasediment melts from an underthrust sheet oceanic lithosphere. As such, intrusions provide a record melting sediment at depth, with implications for mass...
Study area is located in Kerman Province and NE Baft city near to Rabor town. This section is in the structural division of Iran classified as Urumieh-Dokhtar magmatic belt which in Kerman area is called- Dahaj-Sarduieh belt that extended parallel to Urumieh-Dokhtar magmatic belt. These rocks comprise of andesite, andesite-basalt, dacite and rarely basalt and trachy-andesite with Eocene age tha...
The plutonic bodies in northeast of the Sonqor area is a small part of the Sanandaj-Sirjan zone. According to the field and microscopic observations, the study area is composed of two major units; massive rocks (hornblende gabbro, intermediate and felsic rocks) and dikes (pyroxene gabbro). Mineralogical and geochemical studies show that this granitoide compelex is I-type, calk-alkaline and meta...
Dikes feed most eruptions, so understanding their mechanism of propagation is fundamental for volcanic hazard assessment. The variation in geometry a propagating dike as function the injection rate remains poorly studied. Here we use experiments injecting water into gelatin to investigate thickness, width and length flux-driven connected its source time intruded volume. Results show that thickn...
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