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Angela J. Williams, Contractor to USGS, Menlo Park, CA (comp.), and Douglas W. Steinshouer, Contractor to USGS, Denver, CO (comp.), 20010000, geo_sval (Generalized Geology of Svalbard): U.S. Geological Survey, Denver, CO.This is part of the following larger work.
Mark J. Pawlewicz, USGS, Denver, CO (comp.), Donald L. Gautier, USGS, Menlo Park, CA, and Douglas W. Steinshouer, Contractor to USGS, Denver, CO (comp.), 20010000, Open-file report 97-470I "Map Showing Geology, Oil and Gas Fields, and Geologic Provinces of Europe including Turkey": Open File Report 97-470 World Energy Data on CD-ROM Volume I, Europe including Turkey, U.S. Geological Survey, Denver, CO.Online Links:
This is a Vector data set. It contains the following vector data types (SDTS terminology):
The map projection used is Lambert Conformal Conic.
The horizontal datum used is North American Datum 1927.
The ellipsoid used is CLARKE1866.
The semi-major axis of the ellipsoid used is 6378206.4.
The flattening of the ellipsoid used is 1/294.98.
| Range of values | |
|---|---|
| Minimum: | 0.003 |
| Maximum: | 1268.488 |
| Range of values | |
|---|---|
| Minimum: | 0.279 |
| Maximum: | 413.978 |
| Range of values | |
|---|---|
| Minimum: | 2 |
| Maximum: | 248 |
| Range of values | |
|---|---|
| Minimum: | 2 |
| Maximum: | 273 |
| Value | Definition |
|---|---|
| Q | Undivided Quaternary rocks |
| Qv | Quaternary volcanic rocks |
| T | Undivided Tertiary rocks |
| Tv | Tertiary volcanic rocks |
| CzMzv | Cenozoic through Mesozoic volcanic rocks |
| CzMzi | Cenozoic through Mesozoic intrusive igneous rocks |
| Mz | Undivided Mesozoic rocks |
| Mzm | Mesozoic metamorphic rocks |
| MzPz | Undivided Mesozoic through Paleozoic rocks |
| TK | Tertiary through Cretaceous rocks |
| K | Undivided Cretaceous rocks |
| KJ | Cretaceous through Jurassic rocks |
| J | Undivided Jurassic rocks |
| JTr | Jurassic through Triassic rocks |
| Tr | Undivided Triassic rocks |
| Pz | Undivided Paleozoic rocks |
| Pzv | Paleozoic volcanic rocks |
| Pzi | Paleozoic intrusive igneous rocks |
| Pzm | Paleozoic metamorphic rocks |
| P | Undivided Permian rocks |
| C | Undivided Carboniferous rocks |
| D | Undivided Devonian rocks |
| S | Undivided Silurian rocks |
| SO | Silurian through Ordovician rocks |
| O | Undivided Ordovician rocks |
| Cm | Undivided Cambrian rocks |
| pCm | Undivided Precambrian rocks |
| H2O | Surface water |
| ice | Surface ice |
Digitization and attribution of Svalbard portion of coverage - Angela J. Williams
Generalization of adjacent polygons with same attribute - Angela J. Williams
Adjusting and rubbersheeting coverage to ESRI base map data - Douglas W. Steinshouer
Editing and preparation of coverage for publication - Douglas W. Steinshouer
Documentation and metadata - Douglas W. Steinshouer
Coordination - Donald L. Gautier
Donald L. Gautier
U.S. Geological Survey
345 Middlefield Road, MS 975
Menlo Park, CA 94025
U.S.A.650.329.4909 (voice)
650.329.4975 (FAX)
gautier@usgs.gov
- Hours_of_Service: 9:00 am - 5:00 pm PST
To delineate geologic contacts and thematically depict generalized geologic age of outcrops in Open File Report 97-470I Map Showing Geology, Oil and Gas Fields, and Geologic Provinces of Europe including Turkey, which is being compiled as a reference for the U.S. Geological Survey's World Energy Project assessment of undiscovered, technically recoverable oil and gas resources of the world. This coverage is used to produce a map and an Adobe Acrobat Portable Document file of the map.
H. -R. v. Gaertner (comp.), (comp.), H.W. Walther , (comp.), H.S. Weber , and (comp.), H.-H. Voss , 19710000, International Geological Map of Europe and the Mediterranean Region/ Carte Geologique de l'Europe et des regions riveraines de la Mediterranee: UNESCO, Hannover, Germany.
Environmental Systems Research , Inc. (ESRI)(comp.), 19920000, Arcworld cntry_92: Environmental Systems Research Institute, Inc. (ESRI), Redlands, CA.This is part of the following larger work.
Environmental Systems Research , Inc. (ESRI)(comp.), 19920000, Arcworld Digital Map of the World.
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All the attributes other than standard Arc/Info attributes are of
character type.
1. Attribute item "GLG" (generalized geology) is abstracted from fill colors, fill patterns and labels on UNESCO source maps denoting geologic age of surficial outcrops. Rock units whose age is divided within a geologic period on the map are attributed undivided. For instance, units labeled "q", "qh", "qh`m", "qh`g", "qh`fg", "qh`f", "qh`e", "qh`t", "qh`r", "qp", "qp`m", "qp`g", "qp`fg", "qp`f" and "qp`e" are attributed as "Q". A more comprehensive discussion is offered below. Areas colored as surface water bodies and ocean are attributed as "H2O". Areas outside of the political entities comprising Region 4, Europe, and Asia Minor are attributed as "oth". Where there are disagreements on the original map sheets between the label and the fill color, or where printing errors occur, the preference is given to the label in attributing the unit. In some cases, a judgement is made according to the inferred geologic trend. Definitions for the values are found below in the entity and attribute information section.
2. Standard verification of attribute reliability is performed with the Arc/Info labelerrors command to find polygons without assigned character value or with more than one value.
3. Plots are created of the coverage, colored and labeled by item "GLG" at the same scale, projection and map extent of each of the UNESCO source map sheets for the purposes of review and examination. Review was conducted by persons uninvolved in the compilation.
The geologic age generalized by USGS and the original UNESCO age classes are as follows:
Q = {q,qh,qh`m,qh`g,qh`fg,qh`f,qh`e,qh`t,qh`r,qp,qp`m,qp`g,qp`fg,qp`f,qp`e}
Qv = {V-q,B-qh,B-qp}
T = {q+ng,m,ng,m4,m3,m3+2,pg,m2,m1}
Tv = {V-m,B-m}
CzMzv = {Vq-t,tq-t,B*q-t,aV*q-t,V`t*q-t,L`t*q-t}
CzMzi = {G-ne,M-ne,O-ne,U-ne,a-ne}
TK = {m+c}
Mz = {ms}
MzPz = {ms+pl,t+p}
K = {c,c2,c1}
KJ = {c+j}
J = {j,j3,j2,j1}
JTr = {j+t}
Tr = {t,t3,t2,t1}
Pz = {pl,pl2,pl1,h+d}
Pzv = {V*p-pr,L*p-pr,B*p-pr,aV*p-pr}
Pzi = {Mpl,Opl,Upl,aMpl}
P = {p,p2,p1}
C = {h,h2,h2`h,h1,h1`h}
D = {d,d3,d2,d1}
S = {s}
SO = {s+o}
O = {o}
Cm = {cb}
Pzm = {s+eo,cm+eo,pl+eo,pl1+eo}(metamorphic fill patterns present in
all)
pCm = {eo,pl+pr,pr,prA,prB,prC,prD,G-pr2,G-prA,G-prB,M-pr2,M-prA,G-pr1,
G-prC,G-prD,M-prC,I-pr,O-pr,U-pr,aM-pr}
No "s+cb" polygons of sufficient size were found on source map sheets.
Metamorphic rocks (Mzm,Pzm) were defined by metamorphic fill patterns on source map sheets.
Unknown error and distortion were introduced to the compilation
when photocopies of the source map were enlarged to 200%. Coastlines and
inland water bodies abstracted from ESRI Arcworld 1:3m were used to rectify
the scanned images of the traced geologic contacts. Although a relatively
low Root Mean Square (RMS) error was achieved in registering the scanned
images, the registration was inconsistent across the two map sheets used
to compile this coverage and some difficulties were encountered when joining
the coverages digitized from the Western and Eastern maps sheets of the
UNESCO source. When the coverage was digitized there remained discrepencies
with the ESRI sourced coverage. (ESRI Arcworld is chosen as a standard
because it is widely accepted and available.) These discrepencies are in
part the result of the registration problem, and in part caused by compilation
differences between UNESCO and ESRI. Using a roving window, piecewise rubbersheeting
was performed with the Arc/Info adjust command, polygon option. Identifiable
features of inland water bodies and shorelines common to both sources are
used as targets to create the "to - from" links for adjusting the coverage.
Overlaying plots of this coverage, corresponding to the source maps in
scale, projection and map extent, on a light table shows a variable offset
ranging from 0 to 2 mm (10 km).
The following describe the tolerances:
1. Original geologic maps are presumed to be of 500 meter maximum accuracy (0.1mm at 1/5,000,000 scale)
2. Scanned gray-scale images are of 200 dot/inch resolution (0.13 mm on paper map)
3. Scanned images were registered and rectified with an average RMS error of ~1000 meters. (0.1 mm on paper map)
4. Fuzzy tolerance was set at 250 meters (0.31 pixel) and weed tolerance was set at 250 meters (0.31 pixel)
5. 100 points were sampled on the master coverage for fit with ESRI Arcworld country boundaries and an RMS error was calculated of 1,437 meters, the maximum error was 5,045 meters.
N/A
Ages that are divided on the original maps are attributed as undivided. For example: two adjacent polygons of Lower and Middle Cretaceous age are digitized and attributed as one polygon of Cretaceous age. Some unusual age classifications are attributed in a more generalized or standard manner. For instance: Silurian through Eocambrian is attributed as Paleozoic. Acid, intermediate and basic igneous rocks are not differentiated and are attributed as either intrusive or extrusive (volcanic) igneous rocks.
Polygon topology exists. Each polygon has one unique label point with unique id, there are no dangles. Polygons are bounded at perimeter of extent, including areas attributed as water and where geologic age is not shown. The coverage is topologically cleaned and built in Arc/Info 7.1.2.
Are there legal restrictions on access or use of the data?
- Access_Constraints: None
- Use_Constraints:
- This database contains intellectual property of the United Nations Educational, Scientific and Cultural Organization (UNESCO) and of the Commission for the Geological Map of the World (CMGW), and is used with their permission. Portions of this database covering coastline and country boundaries contain intellectual property of Environmental Systems Research Institute, Inc. (ESRI), and are used with their permission. End users are permitted to use these data sets for their own internal use, including derivative work, but are prohibited from using and redistributing these data individually or in a derivative work to third parties. Please refer to the "ATTACHMENT B" file (attach_b.txt) in the prmssn directory of this CD-ROM for further information on ESRI's license agreement. ESRI is a registered trademark in the United States and either a trademark or registered trademark in all other countries where it is used, and ArcExplorer, Arc/Info, Arcview and Arcworld are trademarks of Environmental Systems Research, Inc.
Central Energy Resources Team
U.S. Geological Survey
Box 25046, Denver Federal Center, MS 939
Denver, CO 80225-0046
U.S.A.303.236.1647 (voice)
eteamdisks@usgs.gov
- Hours_of_Service: 8:00 am - 4:00 pm MST
CD-ROM Open File Report 97-470I "Map Showing Geology, Oil and
Gas Fields, and Geologic Provinces of Europe including Turkey"
Although data are processed on a computer system at the U.S. Geological Survey, U.S. Department of the Interior, no warranty, expressed or implied, is made by the U.S. Geological Survey regarding the correctness of the data, or of the utility of the data in any computer system, nor shall the act of distribution constitute any such warranty.
David A. Ferderer
U.S. Geological Survey
Box 25046, Denver Federal Center, MS 939
Denver, CO 80225-0046
U.S.A.303.236.3611 (voice)
303.236.8822 (FAX)
dferdere@usgs.gov
- Hours_of_Service: 8:00 am - 4:00 pm MST