Identification_Information: Citation: Citation_Information: Originator: Barnaby W. Rockwell Publication_Date: 2012 Title: CONTINUOUS-TONE MAP OF MINERAL GROUPS Edition: 1.0 Geospatial_Data_Presentation_Form: remote-sensing image Series_Information: Series_Name: Scientific Investigations Map Issue_Identification: 3190 Publication_Information: Publication_Place: Denver, CO Publisher: U.S. Geological Survey Online_Linkage: http://pubs.usgs.gov/sim/3190 Larger_Work_Citation: Citation_Information: Originator: Barnaby W. Rockwell Publication_Date: 2012 Publication_Time: Unknown Title: DESCRIPTION AND VALIDATION OF AN AUTOMATED METHODOLOGY FOR MAPPING MINERALOGY, VEGETATION, AND HYDROTHERMAL ALTERATION TYPE FROM ASTER SATELLITE IMAGERY WITH EXAMPLES FROM THE SAN JUAN MOUNTAINS, COLORADO Series_Information: Series_Name: Scientific Investigations Map Issue_Identification: 3190 Publication_Information: Publication_Place: Denver, CO Publisher: U.S. Geological Survey Online_Linkage: http://pubs.usgs.gov/sim/3190 Description: Abstract: Multispectral remote sensing data acquired by the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) were analyzed to identify and map surface minerals and mineral assemblages in the western San Juan Mountains, southwestern Colorado. This mapping was performed in support of multidisciplinary studies involving the predictive modeling of geochemical environments at watershed and regional scales. These studies seek to determine the relative effects of mining and non-anthropogenic hydrothermal alteration on watershed surface water geochemistry and faunal populations. This image consists of three enhanced, shortwave-infrared (SWIR) bands (4, 6, and 8) of a mosaicked ASTER dataset covering the study area. These data have been orthorectified to the Universal Transverse Mercator (UTM) projection using a projective transform with ground control points and a digital elevation model from the USGS National Elevation Dataset (1/3 arc second, 10m resolution). The three ASTER bands have been saturation enhanced and sharpened to 15 m spatial resolution using edge-enhanced ASTER band 2 to modulate intensity. This image, in ERDAS Imagine (.img) format, has been designed for viewing and integration with other geospatial data in most image processing and GIS software packages. Purpose: The purpose of the image is to enable the visual discrimination of mineral groups and other surface features over the study area. When the provided bands (4,6, and 8) are displayed as a color composite (468/RGB, or 123/RGB for this dataset), the colors can be interpreted according to the following guide: Magenta: minerals with Al-OH SWIR absorptions (clays, sulfates, and white micas). Red: Al-OH minerals + ferric iron +/- minor carbonate +/- dry vegetation. Orange to reddish orange: dry vegetation +/- minor Al-OH minerals +/- minor carbonate. Brown to reddish brown: green vegetation. Yellow/Green: carbonate minerals (e.g. calcite, dolomite) more likely yellowish; chlorite, epidote and(or) amphiboles with ferric/ferrous iron absorptions more likely greenish. White: High-albedo surfaces such as playas which may contain clays, micas, and/or other minerals. Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2000-09-12 Time_of_Day: 182242 Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -108.015712 East_Bounding_Coordinate: -107.004656 North_Bounding_Coordinate: 38.147725 South_Bounding_Coordinate: 37.424502 Keywords: Theme: Theme_Keyword_Thesaurus: None. Theme_Keyword: ASTER Theme_Keyword: remote sensing Theme_Keyword: geoenvironmental analysis Theme_Keyword: digital data Place: Place_Keyword_Thesaurus: None. Place_Keyword: San Juan Mountains Place_Keyword: Silverton caldera Place_Keyword: Lake City caldera Place_Keyword: Colorado Place_Keyword: United States Stratum: Stratum_Keyword_Thesaurus: None. Stratum_Keyword: Mineral group mapping Access_Constraints: None. Use_Constraints: Acknowledgement of the U.S. Geological Survey would be appreciated in products derived from these data. Data have been checked to ensure the accuracy of the data. If any errors are detected, please notify the originating office. The U.S. Geological Survey strongly recommends that careful attention be paid to the metadata file associated with these data. Although this Federal Geographic Data Committee-compliant metadata file is intended to document the data set in nonproprietary form, as well as in ArcGIS and ERDAS Imagine formats, this metadata file may include some terminology specific to those software packages. Point_of_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Barnaby W. Rockwell Contact_Position: Research Geophysicist Contact_Address: Address_Type: mailing address Address: Box 25046, Mail Stop 973 City: Denver State_or_Province: Colorado Postal_Code: 80225 Country: United States Contact_Voice_Telephone: 303-236-1851 Contact_Facsimile_Telephone: 303-236-3200 Contact_Electronic_Mail_Address: barnabyr@usgs.gov Hours_of_Service: 8:30 am - 5:00 pm Data_Set_Credit: Barnaby W. Rockwell, U.S. Geological Survey Central Mineral and Environmental Resources Science Center Native_Data_Set_Environment: Microsoft Windows 2000 Version 5.2 (Build 3790) Service Pack 2; ESRI ArcCatalog 9.3.1.4000 Cross_Reference: Citation_Information: Originator: Rockwell, B.W. Publication_Date: 2009 Publication_Time: Unknown Title: Comparison of ASTER- and AVIRIS-derived mineral and vegetation maps of the White Horse replacement alunite deposit and surrounding area, Marysvale volcanic field, Utah Series_Information: Series_Name: Scientific Investigations Report Issue_Identification: 2009-5117 Publication_Information: Publication_Place: Denver, CO Publisher: U.S. Geological Survey Online_Linkage: http://pubs.usgs.gov/sir/2009/5117/ Data_Quality_Information: Logical_Consistency_Report: None. Completeness_Report: None. Lineage: Process_Step: Process_Description: Metadata imported. Source_Used_Citation_Abbreviation: C:\DOCUME~1\barnabyr\LOCALS~1\Temp\xml10.tmp Process_Date: 20090806 Process_Time: 11310600 Process_Step: Process_Description: Metadata imported. Source_Used_Citation_Abbreviation: C:\DOCUME~1\barnabyr\LOCALS~1\Temp\xmlD.tmp Process_Date: 20090811 Process_Time: 12131200 Process_Step: Process_Description: Metadata imported. Source_Used_Citation_Abbreviation: C:\Users\barnabyr\AppData\Local\Temp\1\xmlD965.tmp Process_Date: 20101117 Process_Time: 15253600 Process_Step: Process_Description: Metadata imported. Source_Used_Citation_Abbreviation: C:\DOCUME~1\barnabyr\LOCALS~1\Temp\xml6BF4.tmp Process_Date: 20110414 Process_Time: 14050300 Cloud_Cover: 0 Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Raster Raster_Object_Information: Raster_Object_Type: Pixel Row_Count: 5199 Column_Count: 5801 Vertical_Count: 1 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 13 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.999600 Longitude_of_Central_Meridian: -105.000000 Latitude_of_Projection_Origin: 0.000000 False_Easting: 500000.000000 False_Northing: 0.000000 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: row and column Coordinate_Representation: Abscissa_Resolution: 15.000000 Ordinate_Resolution: 15.000000 Planar_Distance_Units: meters Geodetic_Model: Horizontal_Datum_Name: D_WGS_1984 Ellipsoid_Name: WGS_1984 Semi-major_Axis: 6378137.000000 Denominator_of_Flattening_Ratio: 298.257224 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: sanjuans_aster_minvue468_pt-utm.img.vat Entity_Type_Definition: ERDAS Imagine file attributes, ASTER Band 4 Entity_Type_Definition_Source: ERDAS Attribute: Attribute_Label: ObjectID Attribute_Definition: Internal feature number Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Sequential unique whole numbers that are automatically generated. Attribute: Attribute_Label: Value Attribute_Definition: Edge-enhanced radiance values Attribute_Definition_Source: Author Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1 Range_Domain_Maximum: 255 Attribute: Attribute_Label: Count Attribute_Definition: Value frequency count - zeros in background not counted Attribute_Definition_Source: Author Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 14822266 Attribute: Attribute_Label: Contrast Attribute_Definition: ERDAS contrast table Attribute_Definition_Source: Author Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 1 Detailed_Description: Entity_Type: Entity_Type_Label: sanjuans_aster_minvue468_pt-utm.img.vat Entity_Type_Definition: ERDAS Imagine file attributes, ASTER Band 6 Entity_Type_Definition_Source: ERDAS Attribute: Attribute_Label: ObjectID Attribute_Definition: Internal feature number Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Sequential unique whole numbers that are automatically generated. Attribute: Attribute_Label: Value Attribute_Definition: Edge-enhanced radiance values Attribute_Definition_Source: Author Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1 Range_Domain_Maximum: 255 Attribute: Attribute_Label: Count Attribute_Definition: Value frequency count - zeros in background not counted Attribute_Definition_Source: Author Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 14826018 Attribute: Attribute_Label: Contrast Attribute_Definition: ERDAS contrast table Attribute_Definition_Source: Author Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 1 Detailed_Description: Entity_Type: Entity_Type_Label: sanjuans_aster_minvue468_pt-utm.img.vat Entity_Type_Definition: ERDAS Imagine file attributes, ASTER Band 8 Entity_Type_Definition_Source: ERDAS Attribute: Attribute_Label: ObjectID Attribute_Definition: Internal feature number Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Sequential unique whole numbers that are automatically generated. Attribute: Attribute_Label: Value Attribute_Definition: Edge-enhanced radiance values Attribute_Definition_Source: Author Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1 Range_Domain_Maximum: 255 Attribute: Attribute_Label: Count Attribute_Definition: Value frequency count - zeros in background not counted Attribute_Definition_Source: Author Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 14819435 Attribute: Attribute_Label: Contrast Attribute_Definition: ERDAS contrast table Attribute_Definition_Source: Author Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 1 Overview_Description: Entity_and_Attribute_Overview: Georeferenced ASTER bands 4, 6, and 8 that have been saturation enhanced. Edge-enhanced ASTER band 2 was used to modulate intensity. Prior to spectral and spatial enhancement, data were converted to radiance units (W/m2/sr/micron) through multiplication by gain values per band. Although the SWIR data (bands 4-9) have a GIFOV of 30m, they have been resampled to 15m pixel size to match that of the VIS-NIR data (bands 1-3). Each of the three included ASTER bands has attributes generated by the author using ERDAS software regarding edge-enhanced radiance values, value histogram frequency counts, contrast table data, and contrast table breakpoints for the contrast stretch. Contrast stretches are only applied to the data if they are loaded in ERDAS Software. All attributes are accompanied by statistics of data distributions. The image file can be used to display color composites (band assignments to red, green, and blue colors) that are useful for visual discrimination of surface features. 468/RGB color composite (123/RGB for this dataset): visualization of rock and mineral type. Magenta: minerals with Al-OH SWIR absorptions (clays, sulfates, and white micas). Red: Al-OH minerals + ferric iron +/- minor carbonate +/- dry vegetation. Orange to reddish orange: dry vegetation +/- minor Al-OH minerals +/- minor carbonate. Brown to reddish brown: green vegetation. Yellow/Green: carbonate minerals (e.g. calcite, dolomite) more likely yellowish; chlorite, epidote and(or) amphiboles with ferric/ferrous iron absorptions more likely greenish. White: High-albedo surfaces such as playas which may contain clays, micas, and/or other minerals. Original image name: sanjuans_aster_minvue468_pt-utm_zfix.img Entity_and_Attribute_Detail_Citation: Author Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Position: U.S.G.S. Information Services Contact_Address: Address_Type: mailing address Address: P.O. Box 25286 City: Denver State_or_Province: CO Postal_Code: 80225 Country: USA Contact_Voice_Telephone: 1-888-ASK-USGS (1-888-275-8747) Contact_Electronic_Mail_Address: http://ask.usgs.gov Resource_Description: Downloadable Data Distribution_Liability: Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Although this information product, for the most part, is in the public domain, it also contains copyrighted materials as noted in the text. Permission to reproduce copyrighted items for other than personal use must be secured from the copyright owner. This database, identified as SIM 3190, has been approved for release and publication by the USGS. Although this database has been subjected to rigorous review and is substantially complete, the USGS reserves the right to revise the data pursuant to further analysis and review. Furthermore, it is released on condition that neither the USGS nor the United States Government may be held liable for any damages resulting from its authorized or unauthorized use. Although these data have been processed successfully on a computer system at the U.S. Geological Survey, no warranty expressed or implied is made regarding the display or utility of the data on any other system, or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. The U.S. Geological Survey shall not be held liable for improper or incorrect use of the data described and/or contained herein. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: ERDAS Format_Version_Number: 9.3.2 File_Decompression_Technique: no compression applied Transfer_Size: 99 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: //pubs.usgs.gov Fees: None. Metadata_Reference_Information: Metadata_Date: 20111128 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Barnaby W. Rockwell Contact_Address: Address_Type: mailing address Address: Box 25046, Mail Stop 973 City: Denver State_or_Province: Colorado Postal_Code: 80225 Country: United States Contact_Voice_Telephone: (303) 236-1851 Contact_Facsimile_Telephone: (303) 236-3200 Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Time_Convention: local time Metadata_Extensions: Online_Linkage: http://www.esri.com/metadata/esriprof80.html Profile_Name: ESRI Metadata Profile Metadata_Extensions: Online_Linkage: http://www.esri.com/metadata/esriprof80.html Profile_Name: ESRI Metadata Profile