Dacite

Results: 76



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31USGS Geologic Investigations Series I-2780, sheet 2 of 2

USGS Geologic Investigations Series I-2780, sheet 2 of 2

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Source URL: pubs.usgs.gov

Language: English - Date: 2004-11-05 18:03:26
32Alaska Resource Data File Melozitna quadrangle Descriptions of the mineral occurrences shown on the accompanying figure follow. See U.S. Geological Survey[removed]for a description of the information content of each fiel

Alaska Resource Data File Melozitna quadrangle Descriptions of the mineral occurrences shown on the accompanying figure follow. See U.S. Geological Survey[removed]for a description of the information content of each fiel

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Source URL: ardf.wr.usgs.gov

Language: English - Date: 2012-07-25 12:39:35
33UNITED STATES DEPARTMENT OF THE INTERIOR GEOLOGICAL SURVEY DETECTION AND MAPPING OF HYDROTHERMALLY ALTERED ROCKS IN THE VICINITY OF THE COMSTOCK LODE, VIRGINIA RANGE, NEVADA, USING ENHANCED LANDSAT IMAGES

UNITED STATES DEPARTMENT OF THE INTERIOR GEOLOGICAL SURVEY DETECTION AND MAPPING OF HYDROTHERMALLY ALTERED ROCKS IN THE VICINITY OF THE COMSTOCK LODE, VIRGINIA RANGE, NEVADA, USING ENHANCED LANDSAT IMAGES

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Source URL: pubs.usgs.gov

Language: English - Date: 2010-11-18 19:26:32
34Table 1. Radiometric ages from the Western Aleutian Islands, Alaska [Quad is 1:250,000-scale quadrangle; AD, Adak; AT, Attu; GI, Gareloi Island; KK, Kiska; RI, Rat Island; Longitude if negative is degrees W, if positive

Table 1. Radiometric ages from the Western Aleutian Islands, Alaska [Quad is 1:250,000-scale quadrangle; AD, Adak; AT, Attu; GI, Gareloi Island; KK, Kiska; RI, Rat Island; Longitude if negative is degrees W, if positive

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Source URL: pubs.usgs.gov

Language: English - Date: 2006-09-18 15:00:01
35USGS Open-File Report[removed], table 1

USGS Open-File Report[removed], table 1

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Source URL: pubs.usgs.gov

Language: English - Date: 2008-02-20 22:33:31
36Geologic Map of the Tularosa Mountains 30′ Z 60′ Quadrangle, Catron County, New Mexico Compiled by James C. Ratté Prepared in cooperation with the

Geologic Map of the Tularosa Mountains 30′ Z 60′ Quadrangle, Catron County, New Mexico Compiled by James C. Ratté Prepared in cooperation with the

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Source URL: pubs.usgs.gov

Language: English - Date: 2002-06-25 11:37:03
37KSM Volcanic and Intrusive Rock Chemistry • Intrusive rocks at KSM are similar to the lower part of the Jurassic Hazelton Group volcanic rocks: o Dacite and Trachyandesite composition (quartz syenites) o moderate en

KSM Volcanic and Intrusive Rock Chemistry • Intrusive rocks at KSM are similar to the lower part of the Jurassic Hazelton Group volcanic rocks: o Dacite and Trachyandesite composition (quartz syenites) o moderate en

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Source URL: seabridgegold.net

- Date: 2014-02-03 09:25:06
    38Contrib Mineral Petrol[removed]: 315±331 Ó Springer-Verlag 1999 Elizabeth Cottrell á James E. Gardner Malcolm J. Rutherford

    Contrib Mineral Petrol[removed]: 315±331 Ó Springer-Verlag 1999 Elizabeth Cottrell á James E. Gardner Malcolm J. Rutherford

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    Source URL: mineralsciences.si.edu

    Language: English - Date: 2006-09-22 15:52:18
    39Geologic and Aeromagnetic Maps of the Fossil Ridge Area and Vicinity, Gunnison County, Colorado By Ed DeWitt,1 R.S. Zech,1 C.G. Chase,2 R.E. Zartman,3 R.P. Kucks,1 Bruce Bartleson,4 G.C. Rosenlund,5 and Drummond Earley,

    Geologic and Aeromagnetic Maps of the Fossil Ridge Area and Vicinity, Gunnison County, Colorado By Ed DeWitt,1 R.S. Zech,1 C.G. Chase,2 R.E. Zartman,3 R.P. Kucks,1 Bruce Bartleson,4 G.C. Rosenlund,5 and Drummond Earley,

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    Source URL: pubs.usgs.gov

    Language: English - Date: 2003-12-02 18:10:24
    40The Laramide Mesa Formation and the Ojo de Agua Caldera, Southeast of the Cananea Copper Mining District, Sonora, Mexico Scientific Investigations Report[removed]

    The Laramide Mesa Formation and the Ojo de Agua Caldera, Southeast of the Cananea Copper Mining District, Sonora, Mexico Scientific Investigations Report[removed]

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    Source URL: pubs.usgs.gov

    Language: English - Date: 2006-07-21 12:24:09