 | | 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... 16–10 Ma in the western Annapurna and c. 6– 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 Æ 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 84° DT MBT BHUTAN Br...utra ve r MFT MC m NEPAL Indus River Fig. 1 Generalized geologic map of Nepal modified from Amatya |  | | 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 |  | 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 – 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 |  | | Book | | subdivision of the Himalayan belt is valid for India and Nepal sectors. The Pakistan sector has difficulties in...N Gondwana Vindhyan 300 Km + LHS/HHC Granite-gneiss bodies Proterozoic mobile belt Cratonic domains...) central Nepal (Fig. 1.2). The HHC sequence overlying MCT2 is named the Himalayan Gneiss zone by Arita...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 |  | | 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 |  | | Report (chapter) | | such as the Kalopani and the Modi –Khola shear zones in central Nepal (Hodges et al. 1996; Vannay &...2003; Grujic et al. 2012), the Tamor –Khola Thrust in far-eastern Nepal (Schelling & Arita 1991) and the Trisuli...Trisuli –Likhu 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...is a sequence mainly composed of calc-silicate gneiss and marble with minor pelitic and psammitic rocks |  | Zhang, Lin‐Kui, Li, Guang‐Ming, Cao, Hua‐Wen, Zhang, Zhi, Dong, Sui‐Liang, Liang, Wei, Fu, Jian‐Gang, Huang, Yong, Xia, Xiang‐Biao, Dai, Zuo‐Wen, Pei, Qiu‐Ming, Zhang, Shou‐Ting (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) | | leucogranites are widely distributed in the North Himalayan gneiss dome (NHGD) and at the top of the Greater Himalayan...shear detachment fault in the North Himalayan Gneiss Dome (NHGD; north- zone are equivalent to the...belt showing the distribution of Leucogranite, gneiss domes, and South Tibetan Detachment System (Burg...foliation and has obvious distortion mylonite gneiss, schist, and deformed leucogranite sills and is...Harrison, & Lin, 2008) in the THS of Shannan municipality, China. The mica Ar–Ar ages in Gyaca County |  | | Journal (article/letter/editorial) | | Thermal evolution of the Lesser Himalaya, central Nepal: Insights from K-white micas compositional variation...low- to medium-grade metamorphic rocks in central Nepal are rich in K-white micas occurring as porphyroclasts...metamorphism; Lesser Himalaya; Nepal 1. Introduction The Lesser Himalaya (LH) in central Nepal consists of low- to...Geology, Tribhuvan University, Kirtipur, Kathmandu, Nepal. Tel./fax: +81 86 2569669. E-mail address: lalupaudel67@yahoo...the Higher Himalaya and the MCT zone in central Nepal (e.g., Le Fort, 1975; Pêcher, 1975; Arita, 1983; |  | | 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) | | heat flow near the Main Central Thrust, central Nepal Himalaya L.A. Derry a,⁎, 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 3500–4000 m. The second common...large, deeply incised valleys in this section of Nepal have significant geothermal activity. Many of the |  | | 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) | | rocks Southern limit of gneiss Siv~ltks Low~medium Centrol crystalline gneiss Tethyon Fig. 1. Generalised...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...Formation, D = Daling Formation, DG = Darjeeling Gneiss, G = Gondwanas, J = Jutogh Formation, JA -- Jaunsar |  | | 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...heterogeneity in a semi-pelitic schist from central Nepal not only at the centimeter to quartermillimeter |  | Girault, Frédéric, Perrier, Frédéric, 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 Frédéric Girault a,⇑, Frédéric Perrier...Campus, Tribhuvan University, Ghantaghar, Kathmandu, Nepal c National Seismological Centre, Department of Mines...Mines and Geology, Lainchaur, Kathmandu, Nepal d Département Analyse Surveillance Environnement, CEA...of 622 rock samples from 6 different 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 |  | 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) | | modification 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)....81° HHT Mt. Everest Shishapangma Dhaulagiri Annapurna A’ N 28° Cambrian-Ordovician granite B’ 3°E |  | | Journal (article/letter/editorial) | | 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...GHC, or into the THS, forming the North Himalayan Gneiss Dome (NHGD) (Zhang & Guo, 2007; Zhang et al., 2012)...facies to lower granulite facies, calc-silicate gneiss and augen orthogneiss (Kohn et al., 2001; Searle...at the boundary of the GHC garnet (staurolite) gneiss and the underlying LHS coarse-grained garnet schists |  | | Journal (article/letter/editorial) | | granite and Tibetan Slab migmatites in central Nepal P. Barbey a, M. Brouand b, P. Le Fort ‘, 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 |  | | 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...confirms its orogenic-scale presence in central Nepal. Supplementary material: U– Pb geochronological...Evidence for the presence of the RMT in central Nepal is presented by Kohn et al. (2004) in the footwall |  | | 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 85°E indicates that, the western and central Nepal Himalaya have been thickened by 0.5 and 1–1.5 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...styles and histories comprise thrust duplexes, gneiss domes, and intermontane basins. Two such structures...Gurla Mandhata gneiss domes or metamorphic core complexes in the Kumaun and western Nepal Himalaya, respectively |  | 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 (N28°00'37.3'', E85°29'50.9''; 3365 m a.s.l.; Fig...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...study are more abundant in the central and western Nepal Himalaya, where they represent up to ED 40 vol% |  | | 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... Yin Geochemical Comparison of North Himalayan Gneiss Domes, by William C. Hassett, John W. Sommerfeld...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 |  | 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) | | calcsilicates, metabasites and a sheared granite gneiss – the Lingtse gneiss). The metamorphic sequence is characterized...These are separated by a thrust whose equivalent in Nepal has been called the Ramgarh Thrust from the metasedimentary...Tethyan Sedimentary Zone Lingtse gneiss Shiwalik Isograds Darjeeling Gneiss Daling/Paro Group Discontinuity...Discontinuity Faults Chungthang granite gneiss Gondwana/ Buxa Groups B A STDS MCT MBT 10 km Fig. 1....biotite–K-feldspar bearing Precambrian gneiss (the Lingtse Gneiss). Some of these gneissic bodies are continuous |  | | Journal (article/letter/editorial) | | deposited on the ca. 1850 Ma Baragaon granitic gneiss. AN Himalayan Assemblage B satisfies all three...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;...MCT in the up-dip, foreland direction in central Nepal. Yin (2006) combined these three ideas and proposed...600 °C. In regions such as the PT Annapurna Range of central Nepal, multiple top-to-the-hinterland high |
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