Geological Survey Circular PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Geological Survey Circular PDF full book. Access full book title Geological Survey Circular by . Download full books in PDF and EPUB format.
Author:
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 736
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 736
Get Book Here
Book Description
Author: Geological Survey (U.S.)
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 926
Get Book Here
Book Description
Author: Charles D. Masters
Publisher:
ISBN:
Category : Coasts
Languages : en
Pages : 308
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category : Power resources
Languages : en
Pages : 712
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category : Mines and mineral resources
Languages : en
Pages : 68
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 364
Get Book Here
Book Description
Author: Kendell A. Dickinson
Publisher:
ISBN:
Category : Diagenesis
Languages : en
Pages : 20
Get Book Here
Book Description
he Lower Tertiary Kootznahoo Formation, a clastic unit, crops out in scattered areas in the Admiralty Trough, southeastern Alaska. The formation consists mainly of arkosic sandstone, conglomerate, and lesser amounts of coal and shale. Samples were collected and outcrops described from three main outcrop localities in an area beginning in the Kootznahoo Inlet area on the west-central side of Admiralty Island and extending southward to the Keku Strait area between Kuiu and Kupreanof Islands. X-ray diffraction, optical mineralogy, scanning electron micrographs, and stable isotope and other chemical analyses were utilized during sample studies. Three stagtts of diagenesis were recognized. Stage I occurred under the conditions of nonmarine fluvial and paludal deposition and was characterized by development of sideritic concretions and cement. Stage II was characterized by local uplift of the formation and the entrance of oxygenated meteoric ground water, which resulted primarily in kaolinization. Stage Ill was characterized by the deposition of calcite and dolomite apparently in response to subsidence and the invasion of the unit by ground water of marine origin. Uranium mineralization associated with carbonaceous material has been found only where diagenesis to stage II has occurred. Scattered carbonized wood fragments enriched to as much ·as 0.2% uranium were found in a sandstone bed in the Kootznahoo Formation near Kadake Bay on Kuiu Island. The source of the uranium appears to be a heavy-mineral zone within the sandstone. Parts of the Kootznahoo where stage II diagenesis has occurred are favorable uranium exploration targets, but exposures are poor and the probability of finding commercial size deposits is low.
Author: Elinor H. Handman
Publisher:
ISBN:
Category : Acid rain
Languages : en
Pages : 458
Get Book Here
Book Description
Author: Geological Survey (U.S.).
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 34
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 450
Get Book Here
Book Description
