| | Journal (article/letter/editorial) | of Proterozoic Lesser Himalayan rocks in central Nepal Aaron J. Martin a,ā , Katherine D. Burgy a , Alan...Available online 26 November 2010 Keywords: Detrital zircon Calcium carbonate Lesser Himalayan rocks Himalaya...isotopes a b s t r a c t In the Himalaya of central Nepal, uncertainty in the absolute depositional ages and...base of the Lesser Himalayan series in central Nepal, 441 new U/Pb isotopic ages of detrital zircons... 1770, and 1810 Ma, respectively. 182 detrital zircon U/Pb isotopic ages conļ¬rm the identity of another | | | Report (chapter) | tectonic evolution of the southern Annapurna Range, central Nepal AARON J. MARTIN1*, PETER COPELAND2...north-trending transects across the southern Annapurna Range. Combining the new data with previously...into the tectonic development of the southern Annapurna. Muscovite cooling ages from Greater Himalayan... 16ā10 Ma in the western Annapurna and c. 6ā 2 Ma in the eastern Annapurna, revealing a decrease of 4...towards the east. Earlier cooling in the western Annapurna can be explained by along-strike differences in | | | Journal (article/letter/editorial) | Lesser Himalayan rocks exposed in the Modi Khola valley, central Nepal Aaron J. Martin Ć Jibamitra Ganguly...detailed structural mapping in the Modi Khola valley of central Nepal reveal that large displacement thrust-sense...assemblages in the samples collected from the Modi Khola valley record only one episode of metamorphism to... IYSZ Garhwal STDS INDIA M RT RT Delhi Annapurna Kathmandu 500 km CT 84Ā° DT MBT BHUTAN Br...utra ve r MFT MC m NEPAL Indus River Fig. 1 Generalized geologic map of Nepal modified from Amatya | | Larson, Kyle P., Ambrose, Tyler K., Webb, A. Alexander G., Cottle, John M., Shrestha, Sudip (2015) Reconciling Himalayan midcrustal discontinuities: The Main Central thrust system. Earth and Planetary Science Letters, 429. 139-146 doi:10.1016/j.epsl.2015.07.070 | Journal (article/letter/editorial) | 31 July 2015 Editor: A. Yin Keywords: Himalaya Nepal Main Central thrust kinematic evolution a b s t...of the exhumed midcrustal core in west-central Nepal (Carosi et al., 2010; Corrie and Kohn, 2011; Kohn...structures. Timing constraints are from western Nepal (Montomoli et al., 2013). STDS ā South Tibetan Detachment...developed for structures observed in west-central Nepal. There, along the Himalayan front, the GHS can be...contrasts sharply with the GHS exposed in eastern Nepal and neighboring regions where it is in excess of | | | Journal (article/letter/editorial) | of the Greater Himalayan Sequence, Annapurna Himalaya, central Nepal: Insights from titanite petrochronology...Short title: Titanite reveals long-lived thrust in Nepal ABSTRACT The Greater Himalayan Sequence (GHS) has...this study, we examine this concept in central Nepal by integrating temperature-time (T-t) paths, based...previously-identified intra-GHS thrusts in central Nepal, and thrusting duration was 3-6 Ma longer than proposed...than rates for other intra-GHS thrust sheets in Nepal. The overlap in high temperature titanite U-Pb ages | | | Journal (article/letter/editorial) | Himalayan metamorphic core between the Annapurna and Dhaulagiri, central Nepal J . - C . VA NN AY 1 A N D K ....metamorphic core of the Himalaya in the Kali Gandaki valley of central Nepal corresponds to a 5-km-thick sequence...overlying low-grade Tethyan Zone (TZ) by the Annapurna Detachment. Structural, petrographic, geothermobarometric...thrusting along the MCT and extension along the Annapurna Detachment. These results suggest an earlier equilibration...GHS during its thrusting on the colder LHS. The Annapurna Detachment is considered to be a Neohimalayan | | Zhang, LināKui, Li, GuangāMing, Cao, HuaāWen, Zhang, Zhi, Dong, SuiāLiang, Liang, Wei, Fu, JianāGang, Huang, Yong, Xia, XiangāBiao, Dai, ZuoāWen, Pei, QiuāMing, Zhang, ShouāTing (2020) Activity of the south Tibetan detachment system: Constraints from leucogranite ages in the eastern Himalayas. Geological Journal, 55 (7). 5540-5573 doi:10.1002/gj.3756 | Journal (article/letter/editorial) | Email: caohuawen1988@126.com this study, the zircon and monazite UāThāPb geochronology of synkinematic...in-sequence thrust, South Tibetan Detachment System, zircon and monazite UāPb dating Geological Journal. 2020;1ā34...leucogranites can be used to limit study. Seven zircon UāPb and six monazite UāThāPb geochronologies ...Cuonadong Summary of the lithology, sample location, zircon, and monazite ages of leucogranites from Lhozhag...Sample no. Occurrence Lithology GPS position Zircon age (2Ļ)a 1 LZ-1 Deformed dyke Two-mica granite | | | Book | subdivision of the Himalayan belt is valid for India and Nepal sectors. The Pakistan sector has difficulties in...Capital Publishing Company, New Delhi.) central Nepal (Fig. 1.2). The HHC sequence overlying MCT2 is named...grade metamorphism in the HHC zone of the Himachal Pradesh covering areas like Kullu, Manali, Rohtang, and...Lithotectonic Subdivisions of the Himalaya In the Darma Valley of Kumaon Himalaya, Thakur (1977) described a divergent...continuous from Pakistan in the west to Arunachal Pradesh with a gap in Bhutan. Active sedimentation in the | | | Journal (article/letter/editorial) | heat ļ¬ow near the Main Central Thrust, central Nepal Himalaya L.A. Derry a,ā, M.J. Evans b, R. Darling...springs thermochronometry a b s t r a c t In central Nepal hot springs are common in a broad zone where deeply...occur in all of the major river valleys of central Nepal, but their contribution to the thermal budget of...graben that contains the upper reaches of the Kali Gandaki river at altitudes of 3500ā4000 m. The second common...large, deeply incised valleys in this section of Nepal have signiļ¬cant geothermal activity. Many of the | | | Report (chapter) | such as the Kalopani and the Modi āKhola shear zones in central Nepal (Hodges et al. 1996; Vannay &...2003; Grujic et al. 2012), the Tamor āKhola Thrust in far-eastern Nepal (Schelling & Arita 1991) and the Trisuli...Trisuli āLikhu Fault in the Kathumandu Nappe, central Nepal (Arita et al. 1997). According to Mukherjee et al...earlier exhumation of the GHSu at least in western Nepal (Carosi et al. 2010; Montomoli et al. 2013). The...values of 2ā3 km in western Nepal (Carosi et al. 2002, 2007), 30 km in eastern Nepal and Bhutan (Daniel et | | | Report (chapter) | the tectonic evolution of the High Himalaya in Nepal: the art of the possible David John Waters DOI:...the tectonic evolution of the High Himalaya in Nepal: the art of the possible 2 Department of Earth...Abbreviated title: High Himalayan metamorphism, Nepal A N Abstract A CC EP T ED M This review...Himalayan Sequence (GHS) and adjacent units in Nepal, in the light of recent research. The importance...Sequence (GHS) and its upper and lower boundaries, in Nepal and adjacent parts of South Tibet (Fig. 1). Downloaded | | | Journal (article/letter/editorial) | garnets from a semipelitic schist from central Nepal reveal parallel, spiraling bands of high and low...Formation, exposed in the Modi Khola valley of the western Annapurna Range, central Nepal (outcrop location 28363958N...The sample location is on the west side of the valley at nearly the same structural position as the location...the hanging wall of the Ramgarh thrust. In the Annapurna Range, the exposed part of the Lesser Himalayan...or light rare earth elements such as ilmenite, zircon, and allanite are also a concern because of overlaps | | | Journal (article/letter/editorial) | rocks of this zone. Inherited Pb components in zircon yielded minimum ages up to 2200 Ma in the Everest...Details of geology o f the study area, namely, Nepal (1), Sikkim (2) and Bhutan (3) are given in Figs...rocks. I n H i m a c h a l Pradesh, N e p a l a n d A r u n a c h a l Pradesh d e f o r m e d granite sheets...Himachal Pradesh, 2 = West Nepal, 3 = East Nepal, 4 = Sikkim, 5 = Bhutan, 6 = Arunachal Pradesh, B = Buxa...areas of the Himalayas not discussed. Nepal Himalayas In Central Nepal mylonitic granite has been described | | He, Dian, Webb, A. Alexander G., Larson, Kyle P., Martin, Aaron J., Schmitt, Axel K. (2015) Extrusion vs. duplexing models of Himalayan mountain building 3: duplexing dominates from the Oligocene to Present. International Geology Review, 57 (1) 1-27 doi:10.1080/00206814.2014.986669 | Journal (article/letter/editorial) | right-way-up deformation temperature ļ¬eld gradient. U-Pb zircon dating of pre-to-syn- and post-kinematic leucogranites...modiļ¬cation to the structural framework of the central Nepal Himalaya would alter our understanding of the extrusion...appears to be compelling evidence in the central Nepal Himalaya, but it has as yet been documented at only...results obtained in the Dadeldhura klippe of western Nepal are presented in a companion paper (He et al. 2014)...2010). The Kathmandu Nappe is located in central Nepal with Kathmandu city near its centre (Figure 3). | | | Book | Geology Reviews Megh Raj Dhital Geology of the Nepal Himalaya Regional Perspective of the Classic Collided...from Tatopani Megh Raj Dhital Geology of the Nepal Himalaya Regional Perspective of the Classic Collided...Geology Tribhuvan University Kirtipur, Kathmandu Nepal ISBN 978-3-319-02495-0 ISBN 978-3-319-02496-7 DOI...geological setup as Nepal. Forming a bridge between the Western and Eastern Himalaya, Nepal occupies a pivotal...time span from the Proterozoic to Holocene, the Nepal Himalaya preserves unique geological events. Varied | | | Journal (article/letter/editorial) | granite and Tibetan Slab migmatites in central Nepal P. Barbey a, M. Brouand b, P. Le Fort ā, A. P&her...1995; accepted 1 February 1996 Abstract In central Nepal, the Tibetan Slab is made up of biotite-gneisses...Lithos 38 (1996163-79 in the Himalaya (Central Nepal), that has been assumed to derive from the underlying...granite Fig. 1. (a) Schematic map of the Himalaya Nepal after Colchen et al. (1986). redrawn Lesser Himalaya...Crystalline (HHC, also called Tibetan Slab in central Nepal) onto the Lesser Himalaya low-grade formations (Fig | | | Journal (article/letter/editorial) | Structural kinematics, metamorphic PāT profiles and zircon geochronology across the Greater Himalayan Crystalline...northwards to 4.1 kbar in the cordierite zone. Zircon U-Pb ages of a sillimanite migmatite and an undeformed...Greater Himalayan Crystalline Complex; PāT profiles; zircon geochronology. INTRODUCTION The Himalayan belt...within the GHC in the Langtang (Kohn, 2008) and Annapurna regions (Corrie & Kohn, 2011). However, few detailed... 2012) is recognized within the GHC in eastern Nepal (Fig. 1), it is still unclear whether thrusts commonly | | | Report (chapter) | implications for upper crustal shortening in central Nepal S. KHANAL1*, D. M. ROBINSON1, S. MANDAL1 & P. SIMKHADA2...Department of Mines and Geology, Lainchaur, Kathmandu, Nepal *Corresponding author (e-mail: skhanal@crimson.ua...structural architecture of Himalaya in central Nepal. The Main Central thrust (MCT) is at the base of... At Kodari-Tatopani and Malekhu, UāPb detrital zircon age populations from the RMT sheet yield a maximum...confirms its orogenic-scale presence in central Nepal. Supplementary material: Uā Pb geochronological | | Girault, FrĆ©dĆ©ric, Perrier, FrĆ©dĆ©ric, Gajurel, Ananta Prasad, Bhattarai, Mukunda, Koirala, Bharat Prasad, Bollinger, Laurent, Fort, Monique, France-Lanord, Christian (2012) Effective radium concentration across the Main Central Thrust in the Nepal Himalayas. Geochimica et Cosmochimica Acta, 98. 203-227 doi:10.1016/j.gca.2012.09.001 | Journal (article/letter/editorial) | concentration across the Main Central Thrust in the Nepal Himalayas FreĢdeĢric Girault a,ā, FreĢdeĢric Perrier...Campus, Tribhuvan University, Ghantaghar, Kathmandu, Nepal c National Seismological Centre, Department of Mines...Mines and Geology, Lainchaur, Kathmandu, Nepal d DeĢpartement Analyse Surveillance Environnement, CEA...of 622 rock samples from 6 diļ¬erent sites in the Nepal Himalayas was measured in the laboratory using radon...sites, located from Lower Dolpo in Western Nepal to Eastern Nepal, are divided into 9 transects which cut | | | Journal (article/letter/editorial) | core in the Accepted Article Likhu Khola region, East Central Nepal S. SHRESTHA1, K. P. LARSON1, C. GUILMETTE2...ubc.ca Short Title P-T-t evolution of the Likhu Khola region This article has been accepted for publication...dating of the metapelites from Likhu Khola region in east-central Nepal, combined with previously published...wellexposed portion of the HMC in the Likhu Khola region of east central Nepal (Figure 1b; From et al., 2014), combining...HMC. 2. LIKHU KHOLA REGION Reconnaissance scale mapping that included the Likhu Khola region was carried | | | Journal (article/letter/editorial) | to 85Ā°E indicates that, the western and central Nepal Himalaya have been thickened by 0.5 and 1ā1.5 times...low-relief surface in the Mugu-Dolpa region of west Nepal. We propose that these results can be explained...convergence direction, such as Kumaun and western Nepal Himalaya (McCaffrey, 1992; Platt, 1993). Early efforts...metamorphic core complexes in the Kumaun and western Nepal Himalaya, respectively (Fig. 1). Both exhume mid-crustal...differences in structure suggest that the Kumaun and Nepal Himalaya is an ideal place to study the 3-D strain | | | Report (issue) | Fluctuations in the Inner Himalaya (North of the Annapurna and Dhaulagiri Himalaya), by Hermann Achenbach...Fluvial Response in the Tectonically Active Yamuna Valley, North-Western Himalaya: Timescales and Source-to-Sink...in the Greater Himalayan Sequence: Evidence from Zircon U-Pb Geochronology and Trace Element Geochemistry...Uplift and Exhumation along the Arun River (Eastern Nepal): Implications for the Mechanism of Uplift of the...of Asbestos Mining and Milling in Behram Dehri, District Charssada, Northern Pakistan, by Noor Jehan and | | Rapa, Giulia, Groppo, Chiara, Rolfo, Franco, Petrelli, Maurizio, Mosca, Pietro, Perugini, Diego (2017) Titanite-bearing calc-silicate rocks constrain timing, duration and magnitude of metamorphic CO 2 degassing in the Himalayan belt. Lithos, 292. 364-378 doi:10.1016/j.lithos.2017.09.024 | Journal (article/letter/editorial) | (L-GHS), in the GosainkundHelambu region of central Nepal (N28Ā°00'37.3'', E85Ā°29'50.9''; 3365 m a.s.l.; Fig...titanite, and accessory NU bluish tourmaline and zircon; the modal proportion of the mineral phases is...titanite from U-GHS calc-silicate rocks from the Annapurna region (some tens of km westward of our AC studied...(2017) basing on their own field data from eastern Nepal Himalaya. Here we refine those preliminary estimates...from central-eastern Nepal and literature data from central- MA western Nepal (Fig. 11). According | | | Journal (article/letter/editorial) | al. 2011a; PT Webb 2013). In the Annapurna Range of central Nepal, South Tibet Detachment footwall meta-...hanging wall siliciclastic Sanctuary and carbonate Annapurna Yellow formations, respectively (Le Fort, 1975;...Searle, 2010). McQuarrie et al. (2013) used detrital zircon U/Pb ages and other data to show that, in Bhutan...MCT in the up-dip, foreland direction in central Nepal. Yin (2006) combined these three ideas and proposed...600 Ā°C. In regions such as the PT Annapurna Range of central Nepal, multiple top-to-the-hinterland high | | Chakraborty, S., Anczkiewicz, R., Gaidies, F., Rubatto, D., Sorcar, N., Faak, K., Mukhopadhyay, D.K., Dasgupta, S. (2016) A review of thermal history and timescales of tectonometamorphic processes in Sikkim Himalaya (NE India) and implications for rates of metamorphic processes. Journal of Metamorphic Geology, 34 (8) 785-803 doi:10.1111/jmg.12200 | Journal (article/letter/editorial) | consists mainly of pelitic lithologies with detrital zircon ages >1800 Ma and eNd(0) of 27.7 to 23.4 (with...isobaric cooling). Geochronological data (monazite, zircon, garnet) as well as cooling rate calculations (geospeedometry)...These are separated by a thrust whose equivalent in Nepal has been called the Ramgarh Thrust from the metasedimentary...nature of protoliths [e.g. UāPb dating of detrital zircon, eNd(0)] that are discussed below do not show any...it contains garnet (and has different detrital zircon signature as well, see below). We have tentatively |
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