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The Willow Creek-Kashwitna District, Alaska

Description: From introduction: The district described in this report is a triangular area covering about 300 square miles in the southwestern part of the Talkeetna Mountains. The Kashwitna River forms the northern boundary, the Susitna Valley flats the western, and the Willow Creek gold district, which is in the extreme southwestern part of the Talkeetna Mountains, the southern. As the area examined is not a distinct geographic unit, its boundaries being arbitrarily chosen and set only by the limitation of… more
Date: 1935
Creator: Capps, Stephen R. & Tuck, Ralph
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Some Lode Deposits in the Northwestern Part of the Boise Basin, Idaho

Description: From abstract: The report is limited to the geology of lode deposits in the northwestern part of the Boise Basin which are in or near mines that were in operation at the time of visit, in 1930. Owing to the recent inactivity of the formerly rich placer (leposits, there is nothing essential regarding them to add to Lindgren's report published in 1898. The area studied is underlain by granitic rock of the Idaho batholith, which is cut by dikes of Miocene(?) age. These dikes are dacite porphyry (i… more
Date: 1934
Creator: Ross, Clyde P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Petroleum Fields of the Pacific Coast of Alaska with an Account of the Bering River Coal Deposits

Description: From introduction: This report is made in response to a general demand for information a reconnaissance of the petroleum and coal fields in the vicinity of Controller Bay and Bering River and of the petroleum fields on the west shore of Cook Inlet and at Cold Bay made during 1903 and 1904.
Date: 1905
Creator: Martin, George C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Geology of the Portage Pass Area, Alaska

Description: Abstract: The Portage Pass area is in south-central Alaska, and includes part of the narrow neck of land that joins the Kenai Peninsula with the mainland to the north. This region is in general mountainous, elevations ranging from sea level to more than 4,000 feet on the peaks bordering the area. Several glaciers, all of which are apparently receding, extend into the area. Vegetation, chiefly alder and cottonwood on the valley lowlands and some spruce and hemlock on the lower slopes, extends to… more
Date: 1943
Creator: Barnes, Farrell F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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A Reconnaissance of the Northwestern Portion of Seward Peninsula, Alaska

Description: From introduction: In response to an urgent demand by the public, the Geological Survey, in 1900, undertook a topographic and geologic reconnaissance of the southern half of the Seward Peninsula.( The area mapped embraced the more important gold fields of the peninsula. The topographic map made in 1900 included the drainage of Bering Sea from Cape Darby to Port Clarence, the southern drainage of Grantley Harbor and Imuruk Basin, and the northern drainage of Norton Sound. A geologic reconnaissan… more
Date: 1902
Creator: Collier, Arthur J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Upper Copper and Tanana Rivers, Alaska

Description: From introduction: Two field parties, one topographic, the other geologic, were engaged in making surveys in the section of the Alaska Range between the Nabesna and Big Tok Rivers in 1934. Most of the area surveyed was on the northeast side of the range, within a drainage area that is tributary to the Nabesna and Tanana Rivers, but it also included a small part of the Copper River Basin.
Date: 1934
Creator: Moffit, Fred H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Geology and Ore Deposits in the Reid Inlet Area Glacier Bay, Alaska

Description: From abstract: A gold-bearing area of about 7% square miles near the head of Glacier Bay between Reid and Lamplugh Glaciers was first discovered by Mr. Joseph Ibach in 1924. The dominant rock type in the area is granodiorite, which is intruded into bedded rocks that may be of Paleozoic age. The bedded rocks consist of conglomerate, limestone, and black graphitic schist. A light-colored quartz diorite younger than the granodiorite crops out south of the mapped area.
Date: 1959
Creator: Rossman, Darwin Lucian
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Notes on the Geology of the Alaska Peninsula and the Aleutian Islands

Description: Abstract: During the spring of 1932 an opportunity was offered by the United States Navy for a geologist to accompany an expedition organized to make a reconnaissance of the western part of Alaska Peninsula and the Aleutian Islands. This expedition visited several localities the geology of which was little known. It was found, as had already been expected, that the islands west of Unimak Pass are composed mainly of basic volcanic lavas and fragmental materials, into which have later been inject… more
Date: 1934
Creator: Capps, Stephen R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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[Reports on the Juneau and Admiralty Island Areas, Alaska]

Description: From introduction: From introduction: The present report upon the work of this field season is accompanied by topographic and geologic maps of the vicinity of Juneau, and of a mainland strip extending approximately 200 miles along the coast.
Date: 1906
Creator: Spencer, Arthur C. & Wright, Charles Will
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Geology of the Mount McKinley Quadrangle, Alaska

Description: From abstract: The Mount McKinley quadrangle, in south-central Alaska, includes parts of the Alaska Range, the Tanana and Kuskokwim lowlands, and the Kuskokwim Mountains. Schists of Precambrian age crop out in the northern foothills of the Alaska Range. Sedimentary and volcanic rocks of Paleozoic and Mesozoic age are exposed in the Kuskokwim Mountains, where little is known of their distribution and character, and in the Alaska Range, where they occupy the axial part and northern limb of a grea… more
Date: 1961
Creator: Reed, John Calvin, Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Platinum Deposits of the Goodnews Bay District, Alaska

Description: From abstract: Platinum placers were discovered in 1926 in a small area south of Goodnews Bay, in southwestern Alaska. Beginning in 1927, the placers were worked for 7 years by small-scale mining methods; in later years dragline excavators and a dredge were utilized. These deposits are important, not only because they are of high grade but because they are the only commercial source of platinum metals in the United States. This report details the deposits in this district.
Date: 1976
Creator: Mertie, John Beaver, Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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