A5012168470- Geological formations and processes
- Geology and Paleoclimatology Research
- Hydrology and Sediment Transport Processes
- earthquake and tectonic studies
- Geological and Geophysical Studies
- Reservoir Engineering and Simulation Methods
- Hydrocarbon exploration and reservoir analysis
- Landslides and related hazards
- Flood Risk Assessment and Management
- Methane Hydrates and Related Phenomena
- Underwater Acoustics Research
- Geological Modeling and Analysis
- Geological and Geochemical Analysis
- Soil erosion and sediment transport
- Transboundary Water Resource Management
- Evolution and Paleontology Studies
- Maritime and Coastal Archaeology
- Groundwater and Watershed Analysis
- High-pressure geophysics and materials
- Geological Studies and Exploration
- Environmental Sustainability and Technology
- 3D Surveying and Cultural Heritage
- Climate change and permafrost
- South Asian Studies and Conflicts
- Image Processing and 3D Reconstruction
Radford University
2018-2023
Vanderbilt University
2014-2019
The principal nature-based solution for offsetting relative sea-level rise in the Ganges-Brahmaputra delta is unabated delivery, dispersal, and deposition of rivers' ~1 billion-tonne annual sediment load. Recent hydrological transport modeling suggests that strengthening monsoon precipitation 21st century could increase this delivery 34-60%; yet other studies demonstrate decline 15-80% if planned dams river diversions are fully implemented. We validate these modeled ranges by developing a...
Relative sea level history, which is the result of combined effects land subsidence, sediment supply and absolute history may be reconstructed from preserved thicknesses. However, variations in thicknesses between different sedimentary environments strongly limit accuracy this type geological approach, particularly fluvial channelized systems, such as delta plains. To address this, we apply three independent stratigraphic approaches to case Ganges–Brahmaputra–Meghna Delta (GBMD). Our...
The Calabrian forearc separated from Sardinia ~10 Ma and migrated to the ESE, creating an oceanic basin (the Tyrrhenian Sea) in its wake colliding obliquely with Apulia build southern Apennines. time transgressive, spatially asymmetric nature of oblique collisions leads along-strike migration active geologic processes. Lack evidence for large thrust earthquakes conflicting geodetic Calabria-Apulia convergence contribute predominant belief that this process has completely ceased. Indicators...
Abstract The Holocene stratigraphy of Sylhet basin, a tectonically influenced sub‐basin within the Ganges‐Brahmaputra‐Meghna delta ( GMBD ), provides evidence for autogenic and allogenic controls on fluvial system behaviour. Using lithology stratigraphic architecture from dense borehole network, patterns bypass‐dominated extraction‐enhanced modes sediment transport deposition have been reconstructed. During ~3‐kyr mid‐Holocene occupation basin by Brahmaputra River, water were initially...
Research Article| August 08, 2018 Impact of glacial-lake paleofloods on valley development since glacial termination II: A conundrum hydrology and scale for the lowstand Brahmaputra-Jamuna paleovalley system J.L. Pickering; Pickering † 1Department Earth Environmental Science, Vanderbilt University, Nashville, Tennessee 37235, USA †Present address: Shell International Exploration Production, Inc., Houston, Texas 77082, USA; jennifer.pickering@shell.com. Search other works by this author on:...
Abstract The Bengal Basin preserves the erosional signals of coupled tectonic‐climatic change during late Cenozoic development Himalayan orogen, yet regional correlation and interpretation these remains incomplete. We present a new geologic map fluvial‐deltaic deposits Indo‐Burman Ranges (IBR), five detrital zircon fission track analyses, twelve high‐n U‐Pb age distributions (dzUPb) from Barail (late Eocene–early Miocene), Surma (early–late Tipam Miocene–Pliocene) Groups ancestral...
Quantitative interrogation of grain sizes in sedimentary systems has the potential to improve predictions stratigraphic architecture, facies distributions, and downstream reservoir characteristics. To quantify these relationships, fining data are coupled with rates mass extraction, input grain‐size distribution, accommodation, sediment from multiple transport pathways providing primary controls on resulting dispersal patterns. We spatially apportioned distribution along three delivery...
Abstract Subsurface deformation is a driver for river path selection when rates become comparable to the autogenic mobility rate of rivers. Here we combine geomorphology, soil and sediment facies analyses, geophysical data Late Quaternary sediments central Garo‐Rajmahal Gap in Northwest Bengal link subsurface with surface processes. We show variable sedimentation characteristics, from slow (<0.8 mm/year) Tista megafan at foot Himalaya nondeposition exposed Barind Tract south, enabling...
ABSTRACT The stratigraphic record of Cenozoic uplift and denudation the Himalayas is distributed across its peripheral foreland basins, as well in sediments Ganges–Brahmaputra Delta (GBD) Bengal–Nicobar Fan (BNF). Recent interrogation Miocene–Quaternary GBD BNF advance our knowledge Himalayan sediment dispersal relationship to regional tectonics climate, but these studies are limited IODP boreholes from (IODP 354 362, 2015-16) Quaternary cores (NSF-PIRE: Life on a tectonically active delta,...
Abstract Favorable topographic gradients and channel bed aggradation are often cited as primers for river avulsion. Sylhet Basin in Bangladesh subsides relatively rapidly presents a topographically favorable course the Brahmaputra River. Holocene occupations of this region remained routed along basin's western margin, depositing tens meters amalgamated sands but leaving central basin under‐filled. The localized backwater effect from seasonal lake that forms Basin, referred to “hydraulic...
Glacial lake outburst floods (GLOFs) pose an increasing hazard to communities living downstream of glaciated areas the Northern Patagonia Icefield (NPI). The proliferation GLOF events poses a growing human development and infrastructure which is rapidly expanding into formerly isolated areas. outlet glaciers on eastern flank NPI, in particular, have experienced increase frequency GLOFs, threatening with potential for future events. Using satellite-derived DEM UAV imagery, we evaluated flood...