USGS Professonal Paper 1096 - IRIS

LOUISIANA
Garland, TX
GENERAL INFORMATION
Operated by:
Address:
Telephone:
Telex:
Teledyne Geotech
Teledyne Geotech
3401 Shiloh Road
Garland, TX 75041
214-271-2561
73-2394
Addiess to obLaiu records.
SITE INFORMATION
Teledyne Geotech
Seismic Data Analysis Center
314 Montgomery Street
Alexandria, VA 22314
Code
Station name
La titude Longitude Elev Date Date
(degN.) (deg W.) (meters) opened closed
Foundation; geologic age
(JE-LA) Jena-------------------- 31. 7847 92.0153
46
2/06/64 11/23/64
ll/16/66 1/16/67
Sandstone.
(LV-LA) Liddievi11e------------- 32.1361 91.8750
15
6/28/63 1/30/64
Alluvium.
INSTRUMENTATION
Seismometer
Code Type Component
Type
recording
Magnification
at To
Remarks
(JE-LA), (LV-LA): Benioff--------- Z,NS,EW 1.0
Sprengnethe r- - -- Z,NS,EW 20.0
Magnetic tape, (JE-LA): 30 K
35-mm film. (LV-LA): 40 K
---do---------
Timing system: Geotech crystal clock checked with WWV (SO-msec tolerance).
System response curves: See figure 3, p. 364.
SHORT HISTORY
Tile LRSh program began I.n 1960 as part of tne v.r..L1l-UnHOrm proJect. _ll: contl.nued un~H Hll, wnen I.t was replaced by the
Special Data Collection System program which remains active. Work under these programs has been directed towards advanCing the
seismic-detection, identification, and location techniques necessary to detect and identify underground nuclear explosions.
All work is accomplished under the technical direction of AFTAC, Vela Seismic Center, in Alexandria, Va.
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