Glaciation in Alaska (open access)

Glaciation in Alaska

From introduction: The history of glaciation in Alaska offers a fascinating field for study. Because of the remarkable development and easy accessibility of valley and piedmont glaciers in the coastal mountains, Alaska has long been popularly conceived as a land of ice and snow, a concept that is only slowly being corrected. To the student of glaciation, however, Alaska affords a unique opportunity to observe the formation, movement, and dissipation of the many living glaciers, to examine the results of glacial erosion on a gigantic scale, and to discover and work out the sequence of Pleistocene events as shown by the topographic forms in both glaciated and unglaciated areas and by the deposits left by ice and water during earlier stages of glaciation.
Date: 1931
Creator: Capps, Stephen R.
System: The UNT Digital Library
Environmental Geochemical Studies of Selected Mineral Deposits in Wrangell-St. Elias National Park and Preserve, Alaska (open access)

Environmental Geochemical Studies of Selected Mineral Deposits in Wrangell-St. Elias National Park and Preserve, Alaska

From abstract: Environmental geochemical investigations took place in Wrangell-St. Elias National Park and Preserve (WRST), Alaska, between 1994 and 1997. Areas studied include the historic Kennecott stratabound copper mines and mill area; the historic mines and mill in the Bremner district, where gold was produced from polymetallic veins; the sporadically active gold placer mines at Gold Hill; the undisturbed, unmined porphyry copper-molybdenum deposits at Orange Hill and Bond Creek; and the historic mines and mill at Nabesna, where gold-bearing iron skarn deposits were exploited. The cooperative study between the U.S. Geological Survey and the National Park Service focused on identifying and characterizing geochemical signatures associated with these mineralized areas. Sample media included surface water, bedload sediment, rock, mine waste, and mill tailings samples.
Date: 2000
Creator: Eppinger, Robert G.; Briggs, Paul H.; Rosenkrans, Danny S. & Ballestrazze, Vanessa
System: The UNT Digital Library
Shorter Contributions to General Geology, 1918 (open access)

Shorter Contributions to General Geology, 1918

A collection of writings on the shorter contributions to general geology.
Date: 1919
Creator: White, David
System: The UNT Digital Library
Shorter Contributions to General Geology, 1913 (open access)

Shorter Contributions to General Geology, 1913

Preface: The present paper is the first of a new series to be published by the Geological Survey under the title "Shorter contributions to general geology."
Date: 1914
Creator: White, David
System: The UNT Digital Library
The Upper Cretaceous Floras of Alaska (open access)

The Upper Cretaceous Floras of Alaska

From foreword: This report describes the upper cretaceous floras and rocks south of the Brooks Range in Alaska.
Date: 1930
Creator: Hollick, Arthur
System: The UNT Digital Library