Sweetwater River Channel Improvement Project, San Diego County, California: Hydraulic Model Investigation (open access)

Sweetwater River Channel Improvement Project, San Diego County, California: Hydraulic Model Investigation

From abstract: A study of the proposed channel alignment project was conducted using a fixed-bed model constructed at a scale of 1:40 to study the effect of downstream waves and disturbances caused by the curvilinear flow conditions.
Date: February 1988
Creator: Turner, Herman O., Jr.
System: The UNT Digital Library
Mineral Resources of the Whipple Mountains and Whipple Mountains Addition Wilderness Study Areas, San Bernardino County, California (open access)

Mineral Resources of the Whipple Mountains and Whipple Mountains Addition Wilderness Study Areas, San Bernardino County, California

From abstract: At the request of the U.S. Bureau of Land Management, approximately 85,100 acres of the Whipple Mountains Wilderness Study Area (CDCA-312) and 1,380 acres of the Whipple Mountains Addition Wilderness Study Area (AZ-050-010) were evaluated for identified mineral resources (known) and mineral resource potential (undiscovered). In this report, the Whipple Mountains and Whipple Mountains Addition Wilderness Study Areas are referred to as simply "the study area."
Date: 1988
Creator: Marsh, Sherman P.; Raines, Gary L.; Diggles, Michael F.; Howard, Keith A.; Simpson, Robert W.; Hoover, Donald B. et al.
System: The UNT Digital Library
Mineral Resources of the Turtle Mountains Wilderness Study Area, San Bernardino County, California (open access)

Mineral Resources of the Turtle Mountains Wilderness Study Area, San Bernardino County, California

From abstract: At the request of the U.S. Bureau of Land Management, approximately 105,200 acres of the Turtle Mountains Wilderness Study Area (CDCA-307) were evaluated for mineral resources (known) and resource potential (undiscovered). In this report, the area studied is referred to as "the wilderness study area" or simply "the study area"; any reference to the Turtle Mountain Wilderness Study Area refers only to that part of the wilderness study area for which a mineral survey was requested by the U.S. Bureau of Land Management. The wilderness study area is in southeastern San Bernardino County, Calif. Gold, silver, copper, and lead have been mined within and adjacent to the study area.
Date: 1988
Creator: Howard, Keith A.; Nielson, Jane E.; Simpson, Robert W.; Hazlett, Richard W.; Alminas, Henry V.; Nakata, John K. et al.
System: The UNT Digital Library
Coastal Cliff Sediments, San Diego Region, Dana Point to the Mexican Border (1887 to 1947) (open access)

Coastal Cliff Sediments, San Diego Region, Dana Point to the Mexican Border (1887 to 1947)

From Summary: These studies document the temporally episodic and areally site-specific character of subaerial erosion, which is shown to be directly related to prevailing meteorologic conditions.
Date: December 1988
Creator: unknown
System: The UNT Digital Library
River Sediment Discharge Study, San Diego Region (open access)

River Sediment Discharge Study, San Diego Region

The purpose of this study is to estimate the sediment delivery to the coast from streams and watersheds draining to the California Coast in the San Diego Region.
Date: August 1988
Creator: unknown
System: The UNT Digital Library
Sand Thickness Survey Report, October - November, 1987, San Diego Region (open access)

Sand Thickness Survey Report, October - November, 1987, San Diego Region

From introduction: This report documents the methodologies and results of a near-shore sand thickness survey.
Date: August 1988
Creator: unknown
System: The UNT Digital Library
Bitumen-Bearing Deposits of the United States (open access)

Bitumen-Bearing Deposits of the United States

The following report summarizes the locations, resources, and petrophysical data of known bitumen-bearing deposits located primarily in Alabama, California, Kentucky, Texas, and Utah.
Date: 1988
Creator: Crysdale, Bonnie L. & Schenk, Christopher J.
System: The UNT Digital Library