README for U.S. Geological Survey Scientific Investigations Report 2015-5017: Wentworth, C.M., Jachens, R.C., Williams, R..A., Tinsley, J.C., and Hanson, R.T., 2015, Physical subdivision and description of the water-bearing sediments of the Santa Clara Valley, California: U.S. Geological Survey Scientific Investigations Report 2015–5017, 74 p., http://dx.doi.org/10.3133/sir20155017 The report consists of a text with many page-size figures, two plates, and many supporting digital files and GIS layers (listed in Appendix E of the text). The report is available only in digital form. TEXT AND PLATES These are available separately as pdf files, or can be downloaded together as a zipped directory: sir2015-5017_report.pdf sir2015-5017_plate1.pdf sir2015-5017_plate2.pdf sir2015-5017report_and_plates.zip DATA FILES The data files consist of several types: tabular data as Excel files (xls), various text files, digital vector and raster data layers in ArcInfo grid and export coverage format, and color files (shadesets) in ArcInfo format and as text files. The organization of these files for user downloading is described, and then the files are listed by format and topic. See associated metadata files for details about individual GIS vector files and raster grids. Organization (packaging) of files for downloading. Eight groups of files are packaged separately in zipped files that can be individually downloaded. The raster grids of surfaces and properties are also available to be downloaded individually. Data Tables: 8 files - sir2015-5017_xls-files.zip (859 KB) Metadata Files for GIS layers: 7 files - sir2015-5017_metadata.zip (42 KB) Vector Maps: 5 Arc export files (.e00) - sir2015-5017_maps.zip (399 KB) Cycle Boundary Surfaces: 11 zipped Arc grid directories - sir2015-5017_cyclebndys.zip (2.3 MB) Also available individually as zipped Arc grid directories Intra-cycle Boundary Surfaces: 8 zipped Arc grid directories - sir2015-5017_t-b-bndys.zip (2.3 MB) Also available individually as zipped Arc grid directories Aggregate Coarse Thickness: 9 zipped Arc grid directories - sir2015-5017_coarse.zip (2.7 MB) Also available individually as zipped Arc grid directories Percent Coarse: 9 zipped Arc grid directories - sir2015-5017_percent.zip (2.6 MB) Also available individually as zipped Arc grid directories Shadesets and Remap Tables: 2 Arc export files and 4 text files - sir2015-5017_colors.zip (12 KB) ------------------------------------------------------------------------- Lists of Files Data tables as Excel files: Packaged together as 8 Microsoft Excel files (.xls) in the zipped directory sir2015-5017_xls-files.zip scv-core.xls - core data: basic information about the cores, including well code, core number, depth range and length of the core scv-lith.xls - core data: textural and bedding information. scv-accessory.xls core data: description of other features of the sediment scv-remarks.xls - core data: any additional remarks about the sediment scv-penetrometer.xls - core data: approximate unconfined compressive strength of cohesive intervals scv-color.xls - core data: Munsell color of described intervals and any subordinate phases. bndys.xls - depths to cycle boundaries in the 125 control wells. subdivs.xls - details of cycle subdivisions in the 125 wells: for each cycle top and each bottom (where discernable), thickness, aggregate thickness of coarse layers, thickness of the thickest individual fine layer, and number of layers. --------------------------------------- Metadata files: Packaged together as 7 text files in the zipped directory sir2015-5017_metadata.zip ag-pc_grids-metadata.txt - describes the aggregate coarse and percent coarse grids bdrk-metadata.txt - describes the bdrk vector map el_grids-metadata.txt - describes the surface elevation grids qbndys-metadata.txt - describes the qbndys vector map of lines and labels subs-metadata.txt - describes the subs vector map of points wells-metadata.txt - describes the wells vector map of points wels1-metadata.txt - describes the wels1 vector map of points --------------------------------------- Vector maps (Arc coverages) in ArcInfo export format: Packaged together as 5 Arc export files (.e00) in the zipped directory sir2015-5017_maps.zip qbdys.e00 - map of the study area containing boundaries of south San Francisco Bay, the surrounding Bay mud, the outer Quaternary alluvium boundary, and the Holocene/Pleistocene alluvium boundary. The principal areas thus defined are identified as H2O, Qhbm, Qh, Qp, and br(bedrock). wels1.e00 - points representing wells and other control points used to define the base of cycle 1, attributed with depths to and elevations of the cycle 1 boundary. wells.e00 - Points representing all 127 control wells used in the study, attributed for all 8 cycles with depths to and elevations of the cycle boundaries and internal top/bottom boundaries. bdrk.e00 - points representing control on the elevation of the buried bedrock surface. subs.e00 - points representing the 125 control wells used in the study, attributed for all 8 cycles with the subdivision data of data table subdivs.xls. --------------------------------------- Raster grids: Cycle boundary elevation surfaces: Packaged together as 11 zipped Arc grid directories in the zipped directory sir2015-5017_cyclebndys.zip el-c0 - smoothed topographic surface that forms the top of cycle 1. el-c1 - the bottom surface of cycle 1. el-c2a - the bottom of the anomalous upper coarse interval of cycle 2. el-c2 - the bottom surface of cycle 2. el-c3 - the bottom surface of cycle 3. el-c4 - the bottom surface of cycle 4. el-c5 - the bottom surface of cycle 5. el-c6 - the bottom surface of cycle 6. el-c7 - the bottom surface of cycle 7. el-c8 - the bottom surface of cycle 8. Bdrk - the surface of underlying bedrock. --------------------------------------- Intra-cycle top/bottom boundary elevation surfaces: Packaged together as 8 zipped Arc grid directories in the zipped directory sir2015-5017_t-b-bndys.zip el-c1b - the internal top/bottom surface of cycle 1. el-c2b - the internal top/bottom surface of cycle 2. el-c3b - the internal top/bottom surface of cycle 3. el-c4b - the internal top/bottom surface of cycle 4. el-c5b - the internal top/bottom surface of cycle 5. el-c6b - the internal top/bottom surface of cycle 6. el-c7b - the internal top/bottom surface of cycle 7. el-c8b - the internal top/bottom surface of cycle 8. --------------------------------------- Aggregate thickness of coarse layers in coarse intervals within each cycle: Packaged together as 9 zipped Arc grid directories in the zipped directory sir2015-5017_coarse.zip ag-c1b - aggregate coarse thickness in bottom of cycle 1. ag-c2a - aggregate coarse thickness in cycle 2a. ag-c2b - aggregate coarse thickness in bottom of cycle 2. ag-c3b - aggregate coarse thickness in bottom of cycle 3. ag-c4b - aggregate coarse thickness in bottom of cycle 4. ag-c5b - aggregate coarse thickness in bottom of cycle 5. ag-c6b - aggregate coarse thickness in bottom of cycle 6. ag-c7b - aggregate coarse thickness in bottom of cycle 7. ag-c8b - aggregate coarse thickness in bottom of cycle 8. --------------------------------------- Percent of coarse layers in cycle bottoms: Packaged together as 9 zipped Arc grid directories in the zipped directory sir2015-5017_percent.zip pc-c1b - percent of coarse layers in bottom of cycle 1. pc-c11 - percent of coarse layers in cycle 2a. pc-c2b - percent of coarse layers in bottom of cycle 2. pc-c3b - percent of coarse layers in bottom of cycle 3. pc-c4b - percent of coarse layers in bottom of cycle 4. pc-c5b - percent of coarse layers in bottom of cycle 5. pc-c6b - percent of coarse layers in bottom of cycle 6. pc-c7b - percent of coarse layers in bottom of cycle 7. pc-c8b - percent of coarse layers in bottom of cycle 8. --------------------------------------- Color files: Packaged together as 2 shadesets as arc export files and 4 text files in the zipped directory sir2015-5017_colors.zip --------------------------------------- ArcInfo shadesets: thick.shd.e00 - shadeset containing a spectrum of 250 CMYK colors ranging from dark blue through green and yellow to magenta. pct.shd.e00 - shadeset containing a spectrum of 100 CMYK colors ranging from dark blue through green and yellow to magenta. --------------------------------------- Text files: thick.txt - thick shadeset as a text file, containing the same colorsin CMYK format. pct.txt - pct shadeset as a text file, containing the same colors in CMYK format. thick.rmt - text table (remap table) assigning the colors of thick.shd -to values ranging from 0 to 275. pct.rmt - text table (remap table) assigning the colors of pct.shd to values ranging from 0 to 100. ------------------------------------------------------------------------