نتایج جستجو برای: the lower triassic rocks indicate
تعداد نتایج: 16087334 فیلتر نتایج به سال:
Garnet amphibolite is a member of the Hamedan regional metamorphic rocks (the Sanandaj-Sirjan zone). The present study is the first report of mineral compositions and P-T condition of the Hamedan region area garnet amphibolites. The garnet amphibolites can be divided into two varieties based on their mineral assemblages including epidote garnet amphibolite and biotite garnet amphibolite. Elect...
Microwave paleointensities indicate a low paleomagnetic dipole moment at the Permo-Triassic boundary
in this thesis, phosphorus ylides [phbppy], [no2bppy] and [brbppy] have been synthesized through the formation of phosphonium salt and dihydrogenation, followed by the reaction of pd(oac)2 and the orthopalladated dinuclear complexes [pd(?-cl)(phbppy)]2, [pd(?-cl)(no2bppy)]2 and [pd(?-cl)(brbppy)]2 have been produced. the reaction of dinuclear complexes and bidentate ligands [l = bipy (2,2-bipyr...
Hydrocarbon reserves of the order 1140 MM brl oe have been identified in northern foreland eastern Greater Caucasus, principally Terek-Caspian fold-and-thrust belt and Prikumsk Swell north foredeep. Despite great economic significance these areas their long exploration history, origin hydrocarbons is still poorly understood. In present paper, geochemical data from 73 oil samples representing 28...
Gazu prospect area is located about 65Km southeast of Tabas in the southern part of Shotori range. Sub-volcanic intermediate intrusive rocks (Upper Cretaceous?), monzonitic to dioritic in composition, intruded into carbonate rocks of Shotori Formation (Triassic) which are the main source for copper mineralization in Gazu district. Alteration zones associated within the intrusive are: Quartz- ...
Based primarily on two previously undescribed skulls, this paper presents a detailed description of the skull and mandible of the latest Triassic procolophonid reptile Hypsognathus fenneri Gilmore, 1928. One of the new skulls, belonging to a presumed juvenile, clearly establishes for the first time the sutural pattern, which differs significantly from that in Procolophon and more basal procolop...
Bovaki and Aghbolagh tungsten (copper-tin-zinc) ore occurrences are located 12 and 14 km northwest of Azna respectively. The region is located in Sanandaj-Sirjan structural zone of Iran, at the complex deformation sub-zone. There are alternative comsisty Upper Triassic carbonate, quartzite and meta-volcanic rocks (such as meta-tuff). In this area, tungsten-copper mineralization occurs as strati...
Evidence of hydrothermal activity is reported for the Mesozoic pre- and syn-rift successions western Adriatic palaeomargin Alpine Tethys, preserved in Western Southalpine Domain (NW Italy). The products processes are represented by vein breccia cements, as well dolomitization silicification host rocks. In eastern part study area, interpreted necking zone continental margin, Middle Triassic dolo...
the present study reports an analysis of response articles in four different disciplines in the social sciences, i.e., linguistics, english for specific purposes (esp), accounting, and psychology. the study has three phases: micro analysis, macro analysis, and e-mail interview. the results of the micro analysis indicate that a three-level linguistic pattern is used by the writers in order to cr...
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