Evidence for the Formation of Illite from Smectite During Burial Metamorphism in the Belt Supergroup, Clark Fork, Idaho

Eric Eslinger , Barbara Sellars

Journal of Sedimentary Research (SEPM)

.... The ratio of K-feldspar to total feldspar decreases from 20-80 percent in the upper two-thirds of the section to 0-10 percent in the lower one-third...

Sources of Periplatform Carbonates: Northwest Providence Channel, Bahamas

Mark R. Boardman, A. Conrad Neumann

Journal of Sedimentary Research (SEPM)

... and Little Bahama Bank, is a drape of largely fine grained lime mud 50 cm thick. Shallow platform sources contribute 75-90 percent; the remainder...

Petrology and Provenance of Sandstones of the Stanley Group (Mississippian), Southern Ouachita Mountains, Oklahoma

J. Gilmore Hill

Kansas Geological Society

... is poor to very poor with matrix content averaging 18 percent. No systematic textural variations suggesting direction to source were noted. Mineralogic...

Titanium-Bearing Black Sand Deposits of Wyoming

J. F. Murphy, R. S. Houston

Wyoming Geological Association

... a maximum of 0.02 percent uranium and 0.056 percent equivalent uranium; hence they are not considered to be a commercial source for this element...

Krisna Lower Baturaja Waterflood Project

Awaludin J. Talo, A. G. Randal

Indonesian Petroleum Association

... ranges from 12 to 36 percent with a mean value of 22.7 percent. Permeability from core data varies from 0.1 to 880 md, with a mean value of 98.6 md...

Characteristics of Organic-Rich Deposits of Coastal Hancock County, Mississippi

Gregory N. Bonn , Franz Froelicher

GCAGS Transactions

...), The brackish marshes of coastal south Hancock County, Mississippi, consist largely of organic sediments that range in ash content from 27 to 92 percent (dry...

Foraminiferal Distribution in the Saratoga Chalk of Arkansas

William R. Morgan , Charles L. McNulty

GCAGS Transactions

... differences due to size of the population (Fig. 3). There was a maximum difference of only 0.3 to 2.2 percent between the predominant species of the 200...

Reliability of Visual Estimates of Grain Abundance

John M. Dennison, James H. Shea

Journal of Sedimentary Research (SEPM)

... estimates are unbiased but not very precise. Standard deviations of observation errors ranged from 16 percent when the material estimated comprises 55...

Understanding the Drivers of Parent-child Depletion: A Machine Learning Approach

Dillon Niederhut, Alexander Cui

Unconventional Resources Technology Conference (URTEC)

... by the percent of reserves already generated by the parent well. Finally, we observe mixed results for the influence of geology, which warrants further...

Petrology of Domengine Formation (Eocene), at Potrero Hills and Rio Vista, California

Thomas W. Todd , William A. Monroe

Journal of Sedimentary Research (SEPM)

... percent clay matrix. Its thickness ranges from 6 to 7 meters in Potrero Hills exposures. The terminal unit, E, is a thinly-bedded, grayish orange (10YR 7/4...

A Review of the Physical and Mechanical Properties of Coal with Implications for Coal-Bed Methane Well Completion and Production

Arfon H. Jones, Gregory J. Bell, Richard A. Schraufnagel

Rocky Mountain Association of Geologists

... metamorphism, and 2) nitrogen is a relatively small constituent when volatile matter drops below a critical level, approximately 46 to 35 percent (when coal...

The Oil Well Saline-Water Resources of the Uinta Basin, Utah: Their Character and Distribution

J. Wallace Gwynn

Utah Geological Association

... that of the oil. Now, saline water is co-produced in more than 75 percent of the active oil and gas fields within the state (Utah Division of Oil, Gas...

The Paleocene Stratigraphy of the Santa Monica Mountains, Los Angeles County, California

Ivan P. Colburn, Claus M. Jakobsen, Gary A. Novak

Pacific Section SEPM

... in the sandstone intervals. In the sandstone intervals the gravel clasts are often in a floating configuration. Only about 5 percent of the Simi...

Equilibrium in Modern Coral Reefs, Western Gulf of Mexico--Role of Ecology and Ostracod Microfauna

Paul R. Krutak , Sue E. Rickles

GCAGS Transactions

... assemblage of 85 species, only 17 attain a total relative abundance higher than one percent (table 2). We emphasize the word total here. For example...

Geologic Success and Economic Failure

George C. Hardin, Jr. , Karl Mygdal

AAPG Bulletin

.... The return on good quality bonds is about 5 percent, so each time a company undertakes an investment which carries any risk in excess of such low-risk...

Conditions of Gas-Bearing Capability of Deposits of the Kuibyshev Area Along the Volga

K. B. Ashirov К. Б. Аширов, S. P. Maksimov С. П. Максимов

Petroleum Geology: A Digest of Russian Literature

... percent hydrocarbon and 53.4 - 55.6 percent nitrogen. In the test at 1.185 m. depth (pressure 123.4 at.) the gas-oil ratio is 0.232 m3/m3, hydrocarbon...

Abstract: Differentiation of Shale Types by Allochthonous and Autochthonous Nannofossils, by W. W. Cooper; #90978 (1975).

Search and Discovery.com

Beaver Lodge Field North Dakota

J. R. Hamke, L. C. Marchant, C. Q. Cupps

Bureau of Mines

... porosity percent.. 8 Average permeability NR Average water saturation percent.. 42 Average reservoir temperature °F_- 224 Reservoir pressure at datum...

Sweetwater Canyon Sandstone Field Fisher and Nolan Counties, Texas

Donald E. Luff

Abilene Geological Society

.... Approximately seventy-five percent of the producing area is under cultivation with the remainder covered by mesquite trees and underbrush. Ground elevations...

Abstract: Painter Reservoir, East Painter Reservoir and Clear Creek Fields, Uinta County, Wyoming

James R. Frank, Suzanne Gavlin

Earth Science Bulletin (WGA)

... believed to be of eolian origin. Nugget Sandstone core porosity averages 12.5 percent and core permeability averages approximately 5.4 millidarcys...

Depositional Environments of the Claiborne Group

Wayne M. Ahr

Houston Geological Society

... is eventually succeeded by parallel beds. Fluvial sandstones of the Claiborne have a composition that ranges between 15 percent and 70 percent quartz...

Abstract: Shales — Their Sedimentology and Geology

A. Pryor Wayne

Earth Science Bulletin (WGA)

... Luncheon Meetings Casper, Wyoming: Abstracts of Papers Shale and mud form at least 60 percent of the world’s sediments and have been deposited throughout...

Abstract: Sedimentology of the Lower Strawn Formation, Desmoinesean, Central Texas with Particular Emphasis on Reservoir Quality Rock

Steve Keyes

Abilene Geological Society

..., and percent suspension suggest a correlation with facies/environment of deposition, and may be used to help identify other similar deposits...

Alkali Gulch (Gas), T. 34 N., R. 12 W., NMPM La Plata County, Colorado

Billy W. Squires

Four Corners Geological Society

... Porosity: 8.2 percent Permeability: 15.1 millidarcies Water Saturation: 32 percent Initial Field Pressure: 3,500 psi Type of Drive: Gas expansion Gas...

Uranium Deposits: Northern Denver Julesburg Basin, Colorado

Harold L. Reade

Rocky Mountain Association of Geologists

...) Grower 1,007,000 Ibs with an average grade of 0.14 percent eU&,2) Sand Creek 154,000Ibs with an average grade of 0.08 percent eUlO8. and 3...