New Jersey Geological Survey DGS96-2 Bedrock geology of Warren County, New Jersey METADATA 1. IDENTIFICATION INFORMATION 1.1. CITATION Bedrock geology of Warren County, New Jersey By D.H. Monteverde, R.A. Volkert, G.C. Herman, A.A. Drake, Jr., and R.F Dalton Digital compilation by G.C. Herman N.J. Geological Survey Digital Geodata Series DGS96-2 1.2. DESCRIPTION 1.2.1 ABSTRACT The bedrock geology of Warren County consists of three ARC/INFO Geographic Information Systems (GIS) coverages. The GIS data were digitized from various published and unpublished 1:24,000 and 1:48,000 scale geologic maps compiled from 1987 to 1993. 1.2.2. LIST OF DIRECTORIES AND BRIEF DESCRIPTION contacts - ARC/INFO polygon and line coverages of lithologic unit contacts and faults folds - ARC/INFO line coverage of fold axes tiles - ARC/INFO polygon and line coverage of the county boundary and U.S. Geological Survey 7-1/2' quadrangles. info - ARC/INFO INFO directory 1.2.3. LIST OF FILES AND BRIEF DESCRIPTION contacts.e00 (1.95MB) - ARC/INFO (v. 7.0.4) uncompressed export file (ASCII text) of the contacts coverage folds.e00 (219KB) - ARC/INFO (v. 7.0) uncompressed export file (ASCII text) file of the folds coverage tiles.e00 (140KB) ARC/INFO (v. 7.0) uncompressed export file (ASCII text) of the tiles coverage readme.txt (4KB) ASCII text file explaining coverage variables 1.2.4. LIST OF KEYWORDS bedrock, contacts, faults, folds 1.3. GEOGRAPHIC EXTENT Warren County is located in the northwest-central part of New Jersey. It covers most of the southwestern part of the Highlands physiographic province, part of the Valley and Ridge province, and some of the Newark basin part of the Piedmont physiographic province. 1.4. CONTACTS INFORMATION Greg Herman, Don Monteverde, Rich Volkert, and Richard Dalton N.J. Dept. Environmental Protection Division of Science & Research N.J. Geological Survey PO Box 427 Trenton, NJ 08625 phone: (609) 984-6587, email: gherman@dep.state.nj.us ********************************************************* 2. DATA QUALITY INFORMATION 2.1. NAME OF DATA contacts and folds 2.1.1 DESCRIPTION OF THE TYPE OF DATA ARC/INFO (v.7.0) GIS coverages containing vectors with arc-node topology and related attributes 2.1.2 DATA SOURCE Geologic contacts and folds for the Paleozoic rocks were digitized from unpublished maps at the 1:24,000 scale and georegistered to U.S. Geological Survey 7-1/2' quadrangles. Data for the Proterozoic rocks stem from 1:48,000 scale compilation on a mylar base map which was constructed from a mosaic of photographically reduced quadrangles fit into a NAD27 State Plane Coordinate grid. 2.1.3. DATA ORGANIZERS Greg Herman and Don Monteverde mapped and compiled the Paleozoic geology. Rich Volkert, Avery Drake, and Greg Herman mapped and compiled Proterozoic geology. Data were digitized by Greg Herman. 2.1.4. DATE OF COMPLETION May 31, 1995 2.1.5. DATA AUTOMATION AND ACCURACY Coverages were digitized using a CalComp 9100 digitizer with an accuracy of +- 0.005 in. (+-0.127 mm). Coverage features were digitized directly into NAD27 State Plane Coordinate units by first copying geographic information for each quadrangle or set of quadrangles from the N.J. Dept. of Environmental Protection coverage SPCTILES into an empty template. The four corners of each mylar base map were then registered to the corner positions (tics) for a template until a maximum root-mean-square (RMS) error of .006 was obtained (about 12 ft. at the 1:24,000 scale and 24 ft. at the 1:48,000 scale). Approximately 85% of the coverage is accurate to within .003 RMS. RMS values to .006 were obtained for two quadrangles in the southwest (Washington and Easton quadrangles). Proof plots were made of each coverage on mylar and compared to the original base maps. Any line that deviated from the original position by more than .012 inch (about 1 to 1.5 line widths) were re-digitized, re-plotted, and corrected until acceptable results were obtained. After final map editing, both coverages were projected into NAD83 SPC feet. --------------------------------------------------------- 2.2. NAME OF DATA: tiles 2.2.1 TYPE OF SPATIAL DATA ARC/INFO (v.7.0) GIS coverages containing vectors with arc-node topology and related attributes 2.2.2. DATA SOURCE County and quadrangle lines were copied and clipped from the statewide reference coverages available from the N.J. Dept. Environmental, Office of Information Resources Management, 401 E. State St., Trenton, NJ. County outlines were digitized from U.S. Geological Survey 7-1/2' quadrangles, whereas quadrangle tiles were generated for the NAD27 State Plane Coordinate grid. All data are reported to conform to national map accuracy standards for the 1:24,000 scale. Please refer to metadata files for the STATCOQ and SPCTILES for more information on data origin, quality, and limitations. ********************************************************* 3. SPATIAL DATA ORGANIZATION INFORMATION 3.1. NAME OF DATA: contacts, folds, and tiles 3.1.1 DATA STRUCTURE Vector data with arc-node topology. Spatial objects Include polygons, arcs, labels, tics, and nodes with x,y coordinates. 3.2. NUMBER OF SPATIAL OBJECTS Contacts contains 2658 arcs, 753 polygons, 1994 nodes, 279 annotations, 25 tics, 30644 arc segments, and 752 polygon labels. Folds contains 489 arcs, 877 nodes, 25 tics, and 229 arc segments. Tiles contains 105 arcs, 16 polygons, 91 nodes, 15 tics, 3760 arc segments, and 15 polygon labels. ********************************************************* 4. SPATIAL REFERENCE INFORMATION 4.1 DATA PARAMETERS Scale = 1:48,000 Datum = NAD83 Coordinate System = NJ State Plane Units = feet Projection = Polyconic Zone = 4701 4.2. MAPEXTENT contacts folds tiles xmin = 296863.938 xmin = 297337.125 xmin = 296863.938 ymin = 641269.250 ymin = 641564.812 ymin = 641269.250 xmax = 418080.875 xmax = 415613.281 xmax = 418080.875 ymax = 824264.312 ymax = 820876.625 ymax = 824264.312 ********************************************************* 5. ENTITY AND ATTRIBUTE INFORMATION 5.1. NAME OF DIGITAL DATA: contacts 5.1.1 ITEMS AND ATTRIBUTES (arcs, polygons, and tics) 5.1.1.1 ARCS (CONTACTS.AAT) COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC 1 FNODE# 4 5 B - 5 TNODE# 4 5 B - 9 LPOLY# 4 5 B - 13 RPOLY# 4 5 B - 17 LENGTH 4 12 F 3 21 CONTACTS# 4 5 B - 25 CONTACTS-ID 4 5 B - 29 LINTYPE 1 1 I - 30 LITHBND 1 2 I - 31 KIND 8 9 C - note: FNODE#, TNODE#, LPOLY#, RPOLY#, LENGTH, CONTACTS#, and CONTACTS-ID are default system variables. LINTYPE, LITHBND, and KIND are user-specific variables that conform with the NJGS reference file (/geodata/utility/geoitems.txt) used for labeling lines denoting geologic and geographic boundaries. The following list describes the values of the user-specified variables: Lintype: 0 - contact 1 - fault 3 - igneous dike 4- foliation formline 7 - quadrangle boundary 8 - County boundary 9 - State boundary lithbnd: 0 - unspecified 1 - DS/OCYu lithic boundary 2 - Omu/OCkju lithic boundary 3 - Yu/OCu lithic boundary 4 - Mz/OCYu lithic boundary 8 - physiographic province boundary 9 - structural domain boundary kind co - concealed ap - approximately located xx - traces of small faults in the Hope klippe --------------------------------------------------------- 5.1.1.2 POLYGONS (CONTACTS.PAT) COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC 1 AREA 4 12 F 3 5 PERIMETER 4 12 F 3 9 CONTACTS# 4 5 B - 13 CONTACTS-ID 4 5 B - 17 GEONUM 5 6 I - 22 GEOABB 8 9 C - 30 GEONAME 80 81 C - 110 GEOGROUP 5 6 I - note: AREA, PERIMETER, CONTACTS#, and CONTACTS-id are default system variables. GEONUM, GEOABB, GEONAME, and GEOGROUP are user-specified variables that conform with the N.J. Geological Survey reference file (/geodata/utility/geolabel.txt) for labeling geologic units. The following list describes the values of the user- specified variables: geonum geoabb geoname 7600 Sb Bloomsburg Red Beds 7900 Ss Shawangunk Formation 8230 Omr Martinsburg Formation, Ramseyburg Member 8250 Omb Martinsburg Formation, Bushkill Member 8400 Oj Jacksonburg Limestone 8460 Ow Sequence at Wantage 8620 Obu Beekmantown Group Upper Part 8630 Obl Beekmantown Group Lower Part 8750 OCa Allentown Dolomite 8800 Cl Leithsville Formation 8920 Ch Hardyston Quartzite 9260 Zch Chestnut Hill Formation 9420 Ybh Hornblende Granite 9440 Ybs Hornblende Syenite 9460 Ybb Biotite Granite 9480 Yba Microperthite Alaskite 9520 Ypg Pyroxene Granite 9540 Yps Pyroxene Syenite 9560 Ypa Pyroxene Alaskite 9710 Yk Potassic Feldspar Gneiss 9720 Ym Microcline Gneiss 9730 Yb Biotite-Quartz-Feldspar Gneiss 9740 Ymh Hornblende-Quartz-Feldspar Gneiss 9750 Ymp Clinopyroxene-Quartz-Feldspar Gneiss 9760 Yp Pyroxene Gneiss 9770 Ype Pyroxene-Epidote Gneiss 9780 Ymr Marble 9820 Ylo Quartz-Oligoclase Gneiss 9840 Yla Albite Oligoclase Granite 9860 Ylb Biotite-Quartz-Oligoclase Gneiss 9880 Yh Hypersthene-Quartz-Plagioclase Gneiss 9910 Ya Amphibolite 9920 Yam Migmatite 9960 Yma Microantiperthite Alaskite geogroup 7100 (Silurian Bloomsburg Red Beds and Shawangunk Formation) 8200 (Ordovician Martinsburg Formation) 8550 (Ordovician-Cambrian Jacksonburg Limestone and Kittatinny Supergroup) 9000 (Precambrian) --------------------------------------------------------- 5.1.1.3 TICS (CONTACTS.TIC) COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC 1 IDTIC 4 5 B - 5 XTIC 4 12 F 3 9 YTIC 4 12 F 3 note: all items are system default variables --------------------------------------------------------- --------------------------------------------------------- 5.2. NAME OF DIGITAL DATA: folds 5.2.1 ITEMS AND ATTRIBUTES (arcs and tics only) 5.2.1.1 ARCS (FOLDS.AAT) COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC 1 FNODE# 4 5 B - 5 TNODE# 4 5 B - 9 LPOLY# 4 5 B - 13 RPOLY# 4 5 B - 17 LENGTH 4 12 F 3 21 FOLDS# 4 5 B - 25 FOLDS-ID 4 5 B - 29 LINTYPE 1 1 I - 31 KIND 8 9 C - note: FNODE#, TNODE#, LPOLY#, RPOLY#, LENGTH, FOLDS#, and FOLDS-ID are default system variables. LINTYPE and KIND are user-specified variables that conform with the NJGS reference file (/geodata/utility/geoitems.txt) used for labeling lines denoting geologic and geographic boundaries. The following list describes the values of the user-specified variables: Lintype: 0 - contact 2 - fold kind: paau - upright anticline in Paleozoic rocks paao - overturned anticline in Paleozoic rocks paar - gently-inclined to recumbent anticline in Paleozoic rocks paau - upright syncline in Paleozoic rocks paao - overturned syncline in Paleozoic rocks paar - gently-inclined to recumbent syncline in Paleozoic rocks paca - cleavage arch in Paleozoic rocks pact - cleavage trough in Paleozoic rocks prau - upright anticline in Proterozoic rocks prao - overturned anticline in Proterozoic rocks prar - gently-inclined to recumbent anticline in Proterozoic rocks prau - upright syncline in Proterozoic rocks prao - overturned syncline in Proterozoic rocks prar - gently-inclined to recumbant syncline in Proterozoic rocks --------------------------------------------------------- 5.2.1.2 TICS (FOLDS.tic) COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC 1 IDTIC 4 5 B - 5 XTIC 4 12 F 3 9 YTIC 4 12 F 3 note: all items are system default variables --------------------------------------------------------- --------------------------------------------------------- 5.3. NAME OF DIGITAL DATA: tiles 5.3.1 ITEMS AND ATTRIBUTES (arcs, polygons, and tics) 5.3.1.1 ARCS (TILES.AAT) COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC 1 FNODE# 4 5 B - 5 TNODE# 4 5 B - 9 LPOLY# 4 5 B - 13 RPOLY# 4 5 B - 17 LENGTH 4 12 F 3 21 TILES# 4 5 B - 25 TILES-ID 4 5 B - 29 LINTYPE 1 1 I - note: FNODE#, TNODE#, LPOLY#, RPOLY#, LENGTH, TILES#, and TILES-ID are default system variables. LINTYPE is a user-specified variable that conforms with the NJGS reference file (/geodata/utility/geoitems.txt) used for labeling lines denoting geologic and geographic boundaries. The following list describes the values of the user- Specified variables: Lintype: 7 - quadrangle boundary 8 - County boundary 9 - State boundary --------------------------------------------------------- 5.3.1.2 POLYGONS (TILES.PAT) COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC 1 AREA 4 12 F 3 5 PERIMETER 4 12 F 3 9 TILES# 4 5 B - 13 TILES-ID 4 5 B - note: all items are default system variables. --------------------------------------------------------- 5.3.1.3 TICS (TILES.TIC) COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC 1 IDTIC 4 5 B - 5 XTIC 4 12 F 3 9 YTIC 4 12 F 3 note: all items are system default variables --------------------------------------------------------- --------------------------------------------------------- 5.4 LIST OF RELATED TEXT FILES AND LOOK-UP TABLES geolabel.txt contains item variables used by the NJGS for labeling geologic-unit polygons. geoitems.txt contains item variables used by the NJGS for labeling arcs denoting geologic and geographic contacts and boundaries. ********************************************************* 6. DISTRIBUTION INFORMATION Data are available in a number of different formats and media upon request. ********************************************************* 7. METADATA REFERENCE INFORMATION 7.1 PUBLICATION DATE: 3-12-96 7.2 AUTHOR: Gregory Herman, N. J. Geological Survey ********************************************************* 8. PUBLISHED REFERENCES Drake, A.A., Jr., 1967a, Geologic map of the Easton quadrangle, New Jersey - Pennsylvania: U. S. Geological Survey Geological Quadrangle Map GQ-594, scale 1:24,000. __________ 1967b, Geologic map of the Bloomsbury quadrangle, New Jersey: U. S. Geological Survey Geological Quadrangle Map GQ-595, scale 1:24,000. Drake, A.A., Jr., Epstein, J.B., and Aaron, J.M., 1969, Geological map and sections of parts of the Portland and Belvidere quadrangles New Jersey-Pennsylvania: U. S. Geological Survey Miscellaneous Geologic Investigation Map I-552, scale 1:24,000. Drake, A.A., Jr., Kastelic, R.L., Jr., and Lyttle, P.T., 1985, Geologic map of the eastern parts of the Belvidere and Portland quadrangles, Warren County, New Jersey: U.S. Geological Survey Geologic Quadrangle Map I-1530, scale 1:24,000. Monteverde, D.H., Volkert, R.A., Herman, G.C., Drake, A.A., Jr. and Dalton, R.F., 1994, Environmental Geology of Warren County, NJ.: Bedrock Geologic Map, N.J. Geological Survey Open-File Map OFM-15A, scale 1:48,000. Herman, G.C., Monteverde, D.H., Volkert, R.A., Drake, A.A., Jr. and Dalton, R. F., 1994, Environmental Geology of Warren County, N.J.: Map Showing Fracture Sets in Bedrock Outcrops, N.J. Geological Survey Open-File Map OFM-15B, scale 1:48,000, 2 plates. ********************************************************* 9. AUTHORS NOTES Enlargement of the coverages to more detailed scales than specified could result in registration errors. If information is needed at more detailed scales, please contact the N.J. Geological Survey to determine the status of detailed mapping. N.J. Geological Survey Open File Maps 15A and 15B also contain explanatory information that is not provided here, including descriptions of rocks, structural characteristics of the map units, cross section profiles, and inset maps showing other geological and geographical information. Users are urged to obtain a copy of these maps.