Identification_Information: Citation: Citation_Information: Originator: Peter Haeussler, U.S. Geological Survey Publication_Date: 1998 Title: Surficial geologic map along the Castle Mountain fault between Houston and Hatcher Pass Road, Alaska Geospatial_Data_Presentation_Form: map Series_Information: Series_Name: U.S. Geological Survey Open-File Report Issue_Identification: 98-480 Publication_Information: Publication_Place: Anchorage, Alaska Publisher: U.S. Geological Survey Other_Citation_Details: Haeussler, P.J., 1998, Surficial geologic map along the Castle Mountain fault between Houston and Hatcher Pass Road, Alaska: U.S. Geological Survey Open-File Report 98-480, 1 sheet, scale 1:25,000. Online_Linkage: Description: Abstract: This two coverage dataset makes up a 1:25,000 scale surficial geologic map along the Castle Mountain fault between Houston and Hatcher Pass Road in southcentral Alaska. The map area lies entirely within the Anchorage quadrangle and within the Matanuska-Susitna Borough. The primary purpose of the map is to delineate the location of the Castle Mountain fault and other active or potentially active faults in the area. This map lies between two other maps along the Castle Mountain fault by Detterman and others (1974, 1976). Purpose: This map was designed to delineate the location of the Castle Mountain fault and other active or potentially active faults in the area. Nonetheless, the surficial geologic map may be used for generic purposes. Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1998 Currentness_Reference: publication date Status: Progress: complete Maintenance_and_Update_Frequency: Unknown Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -149.9 East_Bounding_Coordinate: -149.2 North_Bounding_Coordinate: 61.75 South_Bounding_Coordinate: 61.5 Keywords: Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: Castle Mountain fault Theme_Keyword: surficial geology Place: Place_Keyword_Thesaurus: None Place_Keyword: Talkeetna Mountains Place_Keyword: Alaska Access_Constraints: None Use_Constraints: Acknowledgement of the U.S. Geological Survey would be appreciated in products derived from these data. Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Peter Haeussler Contact_Organization: U.S. Geological Survey Contact_Address: Address_Type: mailing and physical address Address: 4200 University Drive City: Anchorage State_or_Province: AK Postal_Code: 99508-4667 Country: USA Contact_Voice_Telephone: 907-561-1181 Contact_Facsimile_Telephone: 907-786-7401 Contact_Electronic_Mail_Address: pheuslr@usgs.gov Browse_Graphic: Browse_Graphic_File_Name: cmfmaplowres.gif Browse_Graphic_File_Description: GIF89a image of published map; 300x362 pixels, 72dpi, 256 colors, 44K Browse_Graphic_File_Type: GIF Data_Set_Credit: Peter Haeussler, Nathan Pannkuk (Raytheon STX contractor), H. Wilmer (ECO contractor); U.S. Geological Survey, 4200 University Drive, Anchorage, AK 99508-4667 Native_Data_Set_Environment: SunOS, 5.6, sun4u UNIX, ARC/INFO version 7.1.2 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: The linework was digitized from a paper copy of 1:25,000 scale field maps. The linework was derived from field work and aerial photograpic interpretation. The aerial photographs were taken on March 29, 1986 and working copies were printed at a scale of 1" to 1500 feet or 1:18,000. Aerial photo interpretations were drawn on mylar overlays and then transferered to 1:25,000 topographic maps. Geologic contacts are generally accurate to within 30 meters, and most fault locations are accurate to 10 meters, except the Lost-in-the-woods fault, which is located to approximately 100 meters, where dashed and dotted. The topographic base is a raster layer and obtained by scanning the culture separation of the 1:25,000 topographic base at 300 dpi. Logical_Consistency_Report: The map area is covered by two sets of coverages, 'east' and 'west'. Each area has a net coverage containing information about the geologic units ('unit') and their boundaries ("code"). For each area there is an additional coverage containing fault information. Dangling arcs are present. The topographic base is a 300 dpi Completeness_Report: The data sets contain information appropriate for a 1:25,000 scale surficial geologic map. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Users of this digital geologic map should respect the intentions of the originators and the limitations of the map. This coverage is intended to be used at a scale of 1:25,000; it is not intended to be used as a more detailed scale. The geologic contacts are generally accurate to within 30 meters, and most fault locations are accurate to 10 meters except the Lost-in-the woods fault, which is located to approximately 100 meters. Lineage: Process_Step: Process_Description: Linework was captured by hand digitizing from paper maps and mylar overlays. The linework was edited and attributed using ARC/INFO. The coverage was cleaned, built for polygons, and had labels created and attributed. For the purpose of distribution, the coverages have been converted to interchange format files using the ARC/Info export command. Process_Date: 1998 Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Vector Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 6 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.9996 Longitude_of_Central_Meridian: -147.0 Latitude_of_Projection_Origin: 0.0 False_Easting: 500000 False_Northing: 0.0 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 20 Ordinate_Resolution: 20 Planar_Distance_Units: meters Entity_and_Attribute_Information: Overview_Description: Entity_and_Attribute_Overview: 'Unit' is a numeric item in the polgon attribute table for coverages east and west. The attributes have the following descriptions: 1 Qp Peat deposits (Holocene) 2 Qg Basal drift of Elemendorf advance (Pleistocene) 3 Qac Abandoned river channel deposits (Holocene or Pleistocene) 4 Qc Undifferentiated colluvium (Holocene) 5 Qgb Thin drift of Elmendorf advance (Pleistocene) 6 Qad Ancient drainage deposits of Elmendorf advance (Pleistocene) 7 Qat Alluvium in river terraces (Holocene or Pleistocene) 8 Qaa Alluvium along rivers (Holocene) 9 Qml Lateral moraine of Elmendorf advance (Pleistocene) 10 Qas Undifferentiated colluvium and alluvium (Holocene) 11 Qk Kame terrace deposits of Elmendorf advance (Pleistocene) 12 Qg2 Drift of pre-Elmendorf advances (Pleistocene) 13 Qat2 Alluvium in paleodrainage (Holocene or Pleistocene) 15 Qam Alluvium along small meandering streams (Holocene) 16 Qls Landslide deposits (Holocene) 17 Qe Esker deposits of Elmendorf advance (Pleistocene) 99 w water The arc attribute tables for the coverages east and west have a numeric item named 'code', which has the following descriptions: 0 leader 1 contact 2 contact 3 contact, approximately located 9 water boundary The arc attribute tables for coverages fault_e and fault_2 have a numeric item named 'code', which has the following descriptions: 1 fault 2 fault, possible location 3 fault, approximate location 4 fault, concealed 5 fault, probable location 6 limit of aerial photograph coverage 7 lineation, probably reflecting bedding in underlying bedrock Entity_and_Attribute_Detail_Citation: For complete description of attributes, see Haeussler, P.J., 1998, Surficial geologic map along the Castle Mountain fault between Houston and Hatcher Pass Road, Alaska: U.S. Geological Survey Open-File Report 98-480. Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: USGS Information Services Contact_Address: Address_Type: mailing address Address: Box 25286 Denver Federal Center City: Denver State_or_Province: CO Postal_Code: 80225-0046 Country: USA Contact_Voice_Telephone: 303-202-4200 or 1-800-USA-MAPS Contact_Facsimile_Telephone: 303-202-4695 Distribution_Liability: This digital publication was prepared by an agency of the United States Government. Neither the United States Government nor the agency thereof nor any of their employees make any warranty, expressed or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed in this report or represents that its use would not infringe privately owned rights. Reference therein to any specific commercial product, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. Although this data has been used by the USGS, no warranty, expressed or implied, is made by the USGS as to the accuracy of the data and related materials and/or the functioning of the software. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of these data, software, or related materials. Metadata_Reference_Information: Metadata_Date: 19981028 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Nora Shew Contact_Organization: US Geological Survey Minerals Resource Program - Alaska Section Contact_Address: Address_Type: mailing and physical address Address: 4200 University Drive City: Anchorage State_or_Province: AK Postal_Code: 99508-4667 Country: USA Contact_Voice_Telephone: 907-786-7445 Contact_Facsimile_Telephone: 907-786-7401 Contact_Electronic_Mail_Address: nshew@usgs.gov Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: June 8, 1994