Zobrazeno 1 - 10
of 34
pro vyhledávání: '"George F. Hart"'
Publikováno v:
Applied Clay Science. 131:74-83
Selected physical properties of bentonitic clays in the north Western Desert, Egypt were investigated to assess their potential use in industrial applications. Assessment tests included specific surface area (SSA), swelling index (SI), green (GCS) an
Publikováno v:
Clays and Clay Minerals. 61:551-565
Reconstructing the origin of bentonitic clays is often a challenging and rather complicated undertaking, but the analysis of certain predictor clay minerals is proving to be an excellent method to simplify this process. The goal of the present invest
Publikováno v:
Clays and Clay Minerals. 60:387-404
The purpose of the present investigation was to apply a discriminant function analysis (DFA) to quantitative mineralogical data from 124 Paleogene and Neogene bentonitic clays from the northern Western Desert of Egypt in order to establish an objecti
Autor:
George F. Hart, Peter Webb
Publikováno v:
Palynology. 33:5-10
‘ On a cold day at Port Hudson National Cemetery last week, I shivered as a pair of Marine sergeants solemnly folded an American flag. My friend John Wrenn had lost his battle. He was 62 years old. He had recurrent pancreatic cancer…. Following a
Publikováno v:
Journal of Sedimentary Research. 68:148-154
X-ray mineralogical analyses were applied to 107 surface and vibracore samples from the Krishna Delta of peninsular India to determine whether mineralogical assemblages produce distinct criteria for the recognition of modern deltaic subenvironments.
Autor:
William A. Gregory, George F. Hart
Publikováno v:
Palynology. 19:45-75
Fifty conventional core samples from the Ragley Lumber # 1 well located in Allen Parish Louisiana (Sec 29, T5S, R7W) were analyzed for palynomorphs. Dinoflagellate cysts, not considered to be recycled, were present in all samples along with abundant
Autor:
George F. Hart, William A. Gregory
Publikováno v:
Palynology. 19:1-43
Fifty conventional core samples from the Ragley Lumber #D1 well located in Allen Parish, Louisiana (Sec 29, T5S, R7W) were analysed for terrigenous palynomorphs. The sediment was deposited during the Sabinian in a marine environment as evidenced by t
Publikováno v:
Organic Geochemistry. 17:1-9
Particulate organic matter (POM) isolated from core samples of mudstones in the Mid-Eocene Sparta Formation and the Late Paleocene-Early Eocene Wilcox Group in Louisiana was characterized using transmitted and fluorescent light microscopy and Rock-Ev
Publikováno v:
Organic Geochemistry. 17:483-509
Organic matter in the Upper Cretaceous Mancos Shale adjacent to the Tocito Sandstone in the San Juan Basin of New Mexico was characterized using organic petrology and organic geochemistry. Differences in the organic matter found in these regressive a
Autor:
William A. Gregory, George F. Hart
Publikováno v:
Palynology. 14:105-121
Maceral analysis of a thick, argillaceous dominated‐section from the Wilcox Group of western Louisiana revealed that these litho‐logically homogeneous sediments can be differentiated based on maceral spectra. Analysis of the data using quantitati