A bibliography which contains over 500 references for the Albuquerque Greater Urban Area (AGUA). The intent is to be comprehensive in scope in the areas of hydrology and geology as well as introductory in other interdisciplinary areas.
A list of stratigraphic names which are adopted, revised, reinstated, or abandoned are listed. The scheme of the list has been devised simply to facilitate depiction and analyses of the Precambrain history of the United States.
A report about clinoptilolite. It is a common zeolite, it is potentially valuable for many industrial and agricultural processes, and it might be useful in controlling water pollution by removing ammonia from wastewater.
A report about the United States's coal supply. The U.S. has 25 percent of the world's identified coal resources and about 20 percent of the world's estimated total coal resources.
A report about the Coughs Creek Tongue which is a sequence of light-gray marlstone, locally containing beds of sandstone and siltstone, in the upper part of the Green River Formation.
The following report presents a regional study of the extent, thickness, lithology, stratigraphic relations, age, depositional environment, and tectonic history of thick sulfate deposits and associated salts of sodium and potassium.
Introduction: This report was started as part of a study of the North Cascade Primitive Area, an area of about 830,000 acres, which adjoined the Canadian border on the north and which extended from Mount Shuksan on the west to Rock Mountain on the east. In the fall of 1968, Public Law 90-544, 90th Cong., reclassified the North Cascade Primitive Area and certain other national forest lands and created the North Cascades National Park, the Ross Lake National Recreation Area, and the Pasayten Wilderness. Ross Lake National Recreational Area, a corridor 21/2-4 miles wide along the Skagit River and its dammed portions, Ross, Diablo, and Gorge Lakes, separates the park into two parts and separates the northern part of the park from the Pasayten Wilderness. The present study concerns those parts of North Cascades National Park and the Ross Lake National Recreation Area that are north of Skagit River and west of Ross Lake (fig. 1), as well as part of the Mount Baker National Forest west of the park (pl. 2).
A report which compares 20,000 feet of Belt rocks in the Mission Mountains Primitive Area in Montana with 40,000 feet of Belt rocks in the Pend Oreille area in Idaho and Montana.
Abstract: "The Precambrian rocks of Colorado consist of a metaphoric complex more than 1,700 million years in age, three groups of igneous rocks about 1,700, 1,400, and 1,000 million years in age, here designated informal age groups, and two areally restricted units of sedimentary rocks, one between 1,400 and 1,700 million years in age and one between 950 and 1,400 million years. A systematic nomenclature for many of the rocks does not exist, but the present state of knowledge will permit establishment of a comprehensive nomenclature. Numerous formal names that have been applied to elements of the Precambrian assemblage are appraised and classified in a table, and eight names are abandoned."
From abstract: New stratigraphic nomenclature for units within the Columbia River Basalt Group is introduced to revise and expand that currently in use; it is based largely on subdivisions made informally by T. L. Wright, M. J. Grolier, and D. A. Swanson in 1973. The Yakima Basalt is raised to subgroup status, and three formations-the Grande Ronde Basalt, Wanapum Basalt, and Saddle Mountains Basalt, in order of decreasing age-are defined within it.
A bibliography of about 200 selected references which contain information on source materials dealing with the genesis and geochemistry of gold and geochemical prospecting for gold deposits.
From abstract: A composite section of the Silurian, Devonian, and Mississippian formations in the Funeral Mountains between Death Valley and Amargosa Valley is about 4,700 feet thick. The formations are in the top of a concordant, complexly faulted sequence that is about 25,000 feet thick from the highest part of the Precambrian to the Upper Mississippian. The Silurian and younger formations consist of marine dolomite and limestone that contain some regionally characteristic cherty and siliceous clastic beds as well as widely spaced fossiliferous zones.
A report about mapping in the northern and central parts of the Piceance Creek basin of northwestern Colorado where several relatively thin dominantly marlstone units tongue northward into the Eocene Uinta Formation.
From abstract: The stratigraphic nomenclature of the central Santa Monica Mountains is revised to conform with present knowledge of the age, distribution, and stratigraphic relations of about 35 bedrock units. The revision is based on 1:12,000-scale mapping of the entire stratigraphic sequence and its facies, the position and stage assignment of abundant fossils, and contact relations.
A report about the lithologic units within a red-bed sequence that help to interpret the history and structure of the Woody Creek quadrangle, west-central Colorado.
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