|This data set maps and describes the geology of the Apache Canyon 7.5' quadrangle, Ventura and Kern Counties, California. Created using Environmental Systems Research Institute's ARC/INFO software, the data base consists of the following items: (1) a map
|Stone, Paul A. and Cossette, Pamela M.
|U.S. Geological Survey Open-File Report 00-359
DATABASE STRUCTURE--The database structure of the map consists of two coverages. These coverages include the "FRCT" and the "BOG" coverage. They have the following INFO attribute items. >AREA >PERIMETER >FRCT# >FRCT-ID >DEP_TYPE >SYMBOL > >AREA >PERIMETER >BOG# >BOG-ID >DEP_TYPE >SYMBOL The FRCT coverage contains all contact lines and label points for each polygon related to the ferricrete data, and the BOG coverage contains all contact lines and label points for each polygon related to the bogs and springs data. The FRCT.PAT and BOG.PAT INFO files have the non-common attribute field for DEP_TYPE. DEP_TYPE is a text field that describes each deposit type polygon and each poly line. Two shapefiles each comprise the ferricrete and bogs and springs features. The ferricrete poly and arc features are included in the "frct.shp" and "frcta.shp" shapefiles, respectively. The bog and spring features are included in the bog.shp and boga.shp shapefiles, respectively. The following detailed overview discusses the non-common attribute DEP_TYPE included in the FRCT and the BOG coverages that comprise the ferricrete and iron bogs and springs coverages and the frct.shp, frcta.shp, bog.shp, and boga.shp shapefiles. The INFO files FRCT.PAT and FRCT.AAT have populated attribute fields for item DEP_TYPE and SYMBOL. The INFO items DEP_TYPE and SYMBOL are populated with corresponding text that identifies each unique mapped deposit type and its corresponding map symbol. These ferricrete DEP_TYPE and corresponding SYMBOL attributes are as follows. >af Alluvial ferricrete >cf Colluvial ferricrete >uf Undifferentiated ferricrete >mncf Colluvial manganocrete >mnaf Alluvial manganocrete >tf Transitional colluvial manganocrete and ferricrete >bi Bog iron The INFO files BOG.PAT and BOG.AAT have populated attribute fields for item DEP_TYPE and SYMBOL. The INFO items DEP_TYPE and SYMBOL are populated with corresponding text that identifies each unique mapped deposit type and its corresponding map symbol. These bog and spring DEP_TYPE and corresponding SYMBOL attributes are as follows. >sb Sedge bog >spi Iron spring >ib Iron bog >ub Undifferentiated bog