Prepared and printed for the Lafayette Geological Society for use in their Subsurface Clastic Facies Workshop, April 2, 1980.
|Contributions||Lafayette Geological Society., Subsurface Clastic Facies Workshop (1980)|
In that sense, all deltas are river-dominated and deltas are fundamentally regressive in nature. The morphology and facies architecture of a delta is controlled by the proportion of wave, tide, and river processes; the salinity contrast between inflowing water and the standing body of water, the sediment discharge and sediment caliber, and the water depth into which the river flows. The facies assemblage is interpreted as the deposits of lower delta plain and delta front environments within a mixed influence (i.e. wave‐tide‐fluvial influenced) deltaic complex. The great lateral extent of the major coal seams within the German Creek Formation is Cited by: Deltaic deposits and reservoirs Prodelta/shelf facies are composed of highly laminated, burrowed shales intercalated with very thin lenses of siltstone and very-fine-grained sandstone. This facies thickens seaward and overlies tidal sand-ridge facies. Deltas are one of the most environmentally and economically important coastal sedimentary environments, hosting significant oil, gas, and groundwater resources. Historically, deltas have also been prized by human civilizations for their high natural and agricultural productivity, rich biodiversity.
Deltaic depositional facies result from interacting dynamics processes (wave energy, tidal regime, currents, climate, etc.), which modify and disperse riverborne clastic deposits. The term delta was first applied by the Greek philosopher Herodotus ( B.C.) to the triangular land surface formed by deposits from Nile River distributaries. Facies Facies Sequences and Facies Models. 1: Glacial Facies Canada Canadian carbonate channel clastic clasts commonly continental core Cretaceous cross bedding crystals debris flows delta deltaic depositional environments Devonian diamict dunes eolian evaporites example facies models Figure fluvial Formation About Google Books. Apr 08, · The Carboniferous Shannon Basin of Western Ireland has become one of the most visited field areas in the world. It provides an ideal opportunity for examining a wide range of ancient sedimentary environments, including carbonate shelf, reefs and mud mounds, black shales and phosphates, and a spectrum of deep sea, shallow marine, fluvio-deltaic and alluvial siliciclastic . Change of Deltaic Depositional Environment and Impacts on Reservoir Properties, Ya Gas Field, South China Sea, Marine & Petroleum Geology.
Deltaic and Lacustrine Facies of the Green River Formation, Southern Uinta Basin, Utah Robert R. Remy Department of Geology and Geophysics, Louisiana State Author: Robert R. Remy. Facies Analysis and Sequence Stratigraphic Framework of Upper Campanian Strata (Neslen and Mount Garfield Formations, Bluecastle Tongue of the Castlegate Sandstone, and Mancos Shale), Eastern Book Cliffs, Colorado and Utah By Mark A. Kirschbaum and Robert D. Hettinger U.S. Geological Survey Digital Data Series DDS–69–G. This book contains 21 contributions, each written by an expert in the area of sedimentary basins. The first part of the book is devoted to the methodology used for these studies, in particular physical measurements (well-logging and seismic) and synthesis of subsurface data. Jun 15, · This set of deltaic sandstone acts as the major reservoir rock of Xujiahe gas in the Sichuan Basin, which is generally of low porosity and low permeability due to intense compaction and cementation after burial. The porosity mainly ranges from 4–10% and the permeability ranges from to × 10 -3 μ m 2.