نتایج جستجو برای: alpine himalayan ophiolite

تعداد نتایج: 14666  

2015
Jie Li Nianpeng He Xuehong Wei Yang Gao Yao Zuo Xuhui Zhou

Qinghai-Tibet Plateau grasslands are unique geographical regions and store substantial soil organic matter (SOM) in the soil surface, which make them very sensitive to global climate change. Here, we focused on three main grassland types (alpine meadow, steppe, and desert) and conducted a soil incubation experiment at five different temperatures (5, 10, 15, 20, and 25°C) to investigate SOM deco...

al. et G.B.G. Pananjay

Protected areas are major tourism assets for a nation, particularly for developing countries providing sustainable benefit to the local community while funding for the maintenance and rehabilitation of the protected areas themselves. Valley of flowers national park is naturally meant for the conservation and study of western Himalayan flora. It became National park in 1982 and after that livest...

نصوحیان, نرگس, ترابی, قدرت ,

The Bayazeh ophiolite, with probable Paleozoic age, is cropped out along the Bayazeh fault and located in the eastern margin of the Yazd block (Central Iran). In the field, this ophiolite consists of serpentinized peridotites, metagabbro, ultrabasic metamorphosed dikes, metapicrite, serpentinite and metalistvenite. Development of serpentinization process in the Bayazeh mantle peridotites has be...

2010
F. A. Capitanio G. Morra S. Goes R. F. Weinberg L. Moresi

The most spectacular example of a plate convergence event on Earth is the motion of the Indian plate towards Eurasia at speeds in excess of 18 cmyr−1 (ref. 1), and the subsequent collision. Continental buoyancy usually stalls subduction shortly after collision, as is seen in most sections of the Alpine–Himalayan chain. However, in the Indian section of this chain, plate velocities were merely r...

1999
T. MARK HARRISON MARTY GROVE KEVIN D. McKEEGAN C. D. COATH OSCAR M. LOVERA PATRICK LE FORT

decompression to achieve the same result appear to require extreme The Manaslu granite is the most studied of the dozen or so plutons conditions not permitted by available geological constraints. that make up the High Himalayan leucogranite belt. The inferred relationship of the Manaslu granite with important Himalayan tectonic structures has inspired repeated attempts to determine its crystall...

2015
Bushra Rehman Praveen Rawat Vaibhav Agarwal Shiv Kumar Verma

A STUDY ON THE EFFECTIVENESS OF BOBATH APPROACH VERSUS CONSTRAINT INDUCED MOVEMENT THERAPY (CIMT) TO IMPROVE THE ARM MOTOR FUNCTION AND THE HAND DEXTERITY FUNCTION IN POST STROKE PATIENTS Bushra Rehman 1, Praveen Rawat 2 , Vaibhav Agarwal *3, Shiv Kumar Verma 4. 1 Physiotherapist, Max Hospital, Dehradun, India. 2 Assistant Lecturer, Physiotherapy Department, Swami Rama Himalayan University, HIM...

Journal: :فیزیک زمین و فضا 0
رضا صحبتی دانشجوی کارشناسی ارشد ژئوفیزیک، گروه فیزیک زمین، مؤسسة ژئوفیزیک، دانشگاه تهران، ایران مرتضی فتاحی استادیار، گروه فیزیک زمین، مؤسسة ژئوفیزیک، دانشگاه تهران، ایران

a prerequisite to seismic hazard assessment is to have knowledge of historical and prehistorical earthquakes. to obtain such data, researchers have already practiced different methods including historical seismology, paleoseismology, and recently archaeoseismology. archaeoseismology is a multidisciplinary approach which ideally tries to find the age, epicenter, and magnitude of past earthquakes...

2005
M. J . KOHN M. S. WIELAND C. D. PARKINSON B. N. UPRETI

Monazite grains from Greater Himalayan Sequence gneisses, Langtang valley, Nepal, were chemically mapped and then dated in situ via Th–Pb ion-microprobe analysis. Correlation of ages and chemistry reveals at least five different generations of monazite, ranging from c. 9 to >300 Ma. Petrological models of monazite chemistry provide a link between these generations and the thermal evolution of t...

2003
T. Mark Harrison Oscar M. Lovera

Perhaps the best known occurrence of an inverted metamorphic sequence is that found immediately beneath the Himalayan Main Central Thrust (MCT), generally thought to have been active during the Early Miocene. However, in situ 208Pb/ 232Th dating of monazite inclusions in garnet indicates that peak metamorphic recrystallization of the MCT footwall occurred in this portion of the central Himalaya...

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