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Title

Consortium for Continental Reflection Profiling: COCORP Hardeman County, Texas

AuthorsOliver, J.; Kaufman, S.
Issue Date16-Jun-2020
PublisherDIGITAL.CSIC
CitationOliver, J., Kaufman, S.; (1975); Consortium for Continental Reflection Profiling: COCORP Hardeman County, Texas [Dataset]; DIGITAL.CSIC; http://dx.doi.org/10.20350/digitalCSIC/12530
AbstractIn 1975 the Consortium for Continental Reflection Profiling (COCORP) acquired 37 km of 12-fold commonmidpoint (CMP) stacked seismic reflection profiles in Hardeman County, Texas (Oliver et al. 1976). The entire crustal section was the object of study, so a record length of 15 set (two-way traveltime) was recorded. Three separate profiles were arranged in an H-shaped pattern to provide two-dimensional (2-D) surface coverage.
DescriptionThe field acquisition unit was a 48- channel MDS 8/Mandrel Data System; geophones were Electro-Technical Laboratory EV22C with a natural frequency of 7Vi Hertz; the VIBROSEIS technique was used, sources being five synchronized vibrators (three Y1100, each of 13V2 ton peak force, and two Y900, each of IOV2 ton peak force). Station spacing: 100 m (330 ft), geophone spread length 4.7 km (15,510 ft). Distance of source station to nearest geophone: 400 m (1,320 ft). 24 geophones per station, spread over a distance of 200 m (660 ft) (100 percent geophone overlap). Vibrator array: (Y900 — Y1100 — Y1100 — Y1100 — Y900) vibrators 18.3 m (60 ft) apart, move-up interval of 6.5 m (20 ft); 16 sweeps summed per record. Pilot signal: 15 sec duration; psweep, 10 to 32 Hertz. 8 msec sampling interval; 30 sec recording duration. Normal vibrator locations were spaced two stations apart.
URIhttp://hdl.handle.net/10261/214559
DOIhttp://dx.doi.org/10.20350/digitalCSIC/12530
ReferencesSchilt, F. S., Kaufman, S., and Long G. H. (1981). A three-dimensional study of seismic diffraction patterns from deep basement sources. Geophysics, vol. 46(12): 1673. https://doi.org/10.1190/1.1441175
Oliver, J., Bobrin, M., Kaufman, S., Meyer, R., and Phinney, R. (1976). Continuous seismic reflection profiling of the deep basement, Hardeman County, Texas. Geological Society of America Bulletin, v.87 (11), p. 1537-1546. https://doi.org/10.1130/0016-7606(1976)87<1537:CSRPOT>2.0.CO;2
Appears in Collections:(Geo3Bcn) Conjuntos de datos
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