Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 21 for “"Stratigraphic geology"”.
-
The basement of North Dakota
<p>The purpose of this report is to study the basement rocks of North Dakota. The basement rocks of North Dakota may be divided into two categories. The eastern division comprises deeply weathered material and extends from the Red River westward for approximately thirty miles. The western division …
-
Late Paleogene (Eocene to Oligocene) paleoceanography of the northern North Atlantic
Seismic stratigraphic evidence from the western and northern North Atlantic indicates that a major change in abyssal circulation occurred in the latest Eocene to earliest Oligocene. In the northern North Atlantic, the widely-distributed reflector R4 correlates with an unconformity that can be …
-
The geology of the Grassy Butte area, McKenzie County, North Dakota
… the area; (3) to measure and describe detailed stratigraphic sections which would aid in correlating rock units in this area with previously described rock units in adjacent areas; (4) to indicate lignite beds of possible economic value.</p> <p>The western three-fifths of the Grassy Butte area …
-
The stratigraphy of the Sperati Point Quadrangle, McKenzie County, North Dakota
<p>The Sperati Point Quadrangle is in McKenzie County, northwestern North Dakota, about 30 miles south-southwest of Watford City, North Dakota. The quadrangle is bounded by Ts. 146-148 N., Rs. 100- 101 W., and encompasses an area of about: 54 square miles. The topography consists of weakly …
-
Stratigraphy and depositional environments of the Wilcox Group (Paleocene) at the Oxbow Mine site, northwestern Louisiana
<p>The stratigraphy, structure, and depositional environments of the Naborton, Do let Hills, and part of the Cow Bayou Formations (Wilcox Group, Paleocene) at the Oxbow Mine site, Red River, De Soto, and Natchitoches Parishes,. Louisiana, were evaluated from a study of four continuous cores and 466 …
-
Geology of the passive margin off New England
The results of a detailed geophysical investigation conducted by the Woods Hole Oceanographic Institution in 1975 have been used in conjunction with other available information to reconstruct the geologic history of the passive continental margin off New England. Rifting between northeastern North …
-
Sequence stratigraphy and structure of the tertiary limestones in the Gulf of Papua,Papua New Guinea
A sequence stratigraphic study was conducted on the Mendi and Darai Limestone Megasequences in the foreland area of the Papuan Basin in Papuan New Guinea. It involved the integrated use of seismic, wireline log, well core and cuttings, strontium isotope age and biostratigraphic data. This study …
-
The geology of part of the Woosung quadrangle
Made available in DSpace on 2017-11-30T21:01:07Z (GMT). No. of bitstreams: 2 6430495.pdf: 9465803 bytes, checksum: f4339feba12fec13fa89eca3d3b66dc2 (MD5) license.txt: 4813 bytes, checksum: 715c4321821a960fa1a1e91d2ac7ebce (MD5) Previous issue date: 1939
-
The Redwall Limestone (Mississippian) of north central Arizona
Made available in DSpace on 2017-11-30T21:01:07Z (GMT). No. of bitstreams: 2 6423220.pdf: 8989487 bytes, checksum: 960bf507fa02764ec2b4d7452ce28bf8 (MD5) license.txt: 4813 bytes, checksum: 715c4321821a960fa1a1e91d2ac7ebce (MD5) Previous issue date: 1942
-
Nitrogen isotopes in chlorophyll and the origin of Eastern Mediterranean sapropels
The goals of this thesis were: (1) to establish methods for the determination of nitrogen and carbon isotope ratios in marine particulate and sedimentary chlorophyll derivatives; (2) to establish chlorophyll δ15N and δl3C as proxies for the nitrogen and carbon isotopic composition of marine …
-
Lexicon of bedrock stratigraphic names of North Dakota
<p>This lexicon of bedrock stratigraphic names of North Dakota consists of a general definition of each unit as well as the history of stratigraphic nomenclature, An attempt was made to include all units for North Dakota whether formally or informally named, or cur rently being used in the state. …
-
The geology of the Elliston area, western Montana
<p>The Elliston area includes four townships located along the continental divide west of Helena, Montana on the northwest margin of the Boulder Batholith and within the Laramide disturbed belt. Strata ranging in age from Precambrian through recent are present, with all but the Ordovician, …
-
Glacial stratigraphy of southeastern North Dakota
<p>Seven lithostratigraphic units are recognized in the glacial sediment {till) of southeastern North Dakota. Five of these units are not formally named; eventually most of these units will be correlated with formations in surrounding regions. Two of these units, Gardar and Dahlen, are formations …
-
Three-dimensional seismic interpretations of Miocene strata in Vermilion and South Marsh Island areas, Gulf of Mexico
… continental shelf is the most productive chronostratigraphic unit accounting for 40% of the hydrocarbons produced in the region and 40% of remaining proved reserves. The majority of active fields on the continental shelf of this region are confined to the upper Miocene and are considered mature. …
-
Evolution of an Archean greenstone belt in the Stormy Lake - Kawashegamuk Lake area (stratigraphy, structure and geochemistry) - Western Wabigoon Subprovince, Northwest Ontario /
330 km 2 of the easter-n part of the Archean Manitou Lakes - Stormy Lake metavolcanic - metasedimentary belt have been mapped and sampled. A large number of rocks ~.vere analyzed for the major and trace constituents including the rare-earth elements (REE). The Stormy Lake - Kawashegamuk Lake area …
-
Petrography of xenolith zones in the Black Face-Ames plutons, western San Juan Mountains, Colorado
<p>The middle to late Tertiary Black Face-Ames plutons are irregularly-shaped, intrusive bodies located in the San Miguel Mountains of southwestern Colorado. The Ames pluton is generally a composite sill; the Black Face pluton is an asymmetric laccol1th. The two plutons are probably joined at …
Page 1 of 2