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Pandita, S. K.
- Petrographic and Facies Evaluation of Middle Siwalik Subgroup of Jammu, Himalaya
Abstract Views :154 |
PDF Views:1
Authors
S. K. Pandita
1,
G. M. Bhat
1
Affiliations
1 Department of Geology, University of Jammu, Jammu - 180004, IN
1 Department of Geology, University of Jammu, Jammu - 180004, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 46, No 4 (1995), Pagination: 369-374Abstract
This paper embodies the results on the study of depositional environment, provenance and tectonic setting of Middle Siwalik Subgroup of Jammu region. The data obtained on lithofacies, sedimentary structures and nature of contacts between various lithofacies, suggest multiple episodes of avulsion and abandonment of the channel system for a new course in braided river system. Four variable plot of quartz types shows that these sediments have been derived from low rank metamorphic source. The detrital modes (quartz, feldspar and lithic fragments) plotted on complementary ternary diagrams (QFL and QmFLt) indicate that these sediments have been shed from recycled orogens, transitional arc and transitional continental provinces.Keywords
Sedimentology, Siwalik, Jammu, Himalaya.- Temporal Patterns of Palaeoflows of Middle and Upper Siwalik Subgroups, Jammu
Abstract Views :183 |
PDF Views:1
Authors
S. K. Pandita
1,
G. M. Bhat
1
Affiliations
1 Department of Geology, University of Jammu, Jammu - 180 004, IN
1 Department of Geology, University of Jammu, Jammu - 180 004, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 48, No 2 (1996), Pagination: 211-219Abstract
This paper embodies the results of palaeocurrent analysis of two stratigraphic sections exposed at Parmandal-Uttarbani and Papar-Nad, Jammu. The general palaeoflow patterns are due south-southwesteriy with the temporal palaeoflow variations of 40°-183° and 41°-144°for the Middle and Upper Siwalik Subgroups respectively. In the Middle Siwalik Subgroup of Papar-Nad section and Upper Siwalik Subgroup of Parmandal-Uttarbani section, four palaeoflow reversals have been recorded. The temporal palaeoflow patterns and the reversals are related to the tectonic episodicity of the intrabasinal tectonic structures and the basin margin activity.Keywords
Sedimentology, Palaeocurrents, Siwalik, Jammu, Himalaya.- Microfossils from the Nagrota Formation, Upper Siwalik Subgroup, Jammu Hills
Abstract Views :187 |
PDF Views:2
Authors
Affiliations
1 House No. 441, Sector 6, Panchkula-134 109, IN
2 PG. Department of Geology, University of Jammu, Jammu - 180 006, IN
1 House No. 441, Sector 6, Panchkula-134 109, IN
2 PG. Department of Geology, University of Jammu, Jammu - 180 006, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 58, No 6 (2001), Pagination: 509-518Abstract
The paper records for the first time a small, but interesting microfossil assemblage from the mudstonc beds, underlying the bentonitized tuff band (2.8±0.56 Ma) of the Nagrota Formation, Upper Siwalik Subgroup, Jammu Hills at two localities - Bada Khetar and Uttarbehani. The assemblage comprising ostracodes, charophyte gyrogonites and angiosperm seeds, indicates an Upper Tatrot (Late Pliocene) age and deposition in shallow alkaline lake(s) at depth ranging from 2 to 6 m.Keywords
Nagrota Formation, Upper Siwalik, Late Pliocene, Lacustrine, Ostracodes, Charophyta, Angiosperm Seed.- Turbidite to Storm Transition Sedimentation during Early Carboniferous, Kashmir Himalaya
Abstract Views :210 |
PDF Views:2
Authors
Affiliations
1 Geology Dept., University of Jammu, Jammu - 180 004, IN
1 Geology Dept., University of Jammu, Jammu - 180 004, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 49, No 5 (1997), Pagination: 545-558Abstract
This work, based on sedimentological data collected from two stratigraphic sections at Lambar and Malvat (Banihal area), reports the turbidite to storm influenced sedimentation of "Syringothyris Limestone" sequence, Kashmir Himalaya. An upward progresssion of the sequence reflects the depositional record of fine grained turbidite to storm - and wave - influenced sedimentation. Sedimentary structures like short wave length symmetrical ripples. flat lamination, thin graded bedding and structures in muddy siltstones suggest deposition in low energy, wave influenced settings, The storm influenced sediments display hummocky, cross stratification. skolithos ichinofacies, granule/shelly lags, mega ripples, low angle cross lamination and convolute lamination. The whole sequence is interpreted to represent episodic storm influenced sedimentation in a shallow basin, largely controlled by tectonic activity, The Markov Chain models structured for this sequence also suggest episodic sedimentation and do not show any cyclicity,Keywords
Sedimentology, Syringothyris Limestone, Turbidites, Carboniferous, Kashmir Himalaya.- Reservoir Induced Landslide at Assar, Jammu and Kashmir: A Case Study
Abstract Views :694 |
PDF Views:0
Authors
Affiliations
1 Department of Geology, University of Jammu, Jammu - 180 006, IN
1 Department of Geology, University of Jammu, Jammu - 180 006, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 80, No 3 (2012), Pagination: 435-439Abstract
In February 2009, a huge landslide occurred at Assar in Doda district of Jammu and Kashmir state. The slide triggered after the reservoir level of the Baglihar dam increased from initial water level of 850 m to 870 m. The impounding of reservoir water created high angle scarps at number of fossil slide sites on either side of the river within the reservoir area. One such scarp (about 250 m long) at Assar caused a huge landslide washing out about 150 m road stretch. The sliding material is dominated by finer fraction (71.5 %) of micaceous silty sand and coarser fraction of gravel to boulder size. Over saturation of the slope forming material, weak rocks and high absorption and swelling nature of the soil, high slope angle and toe cutting by the water are the main reasons that triggered this slide.Keywords
Landslide, Pore Water Pressure, Assar, Doda, Baglihar, Jammu.References
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