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COLA - College, Alaska

  Information for COL as of February 1994
Station: College, Alaska
Director: Dr. A W (Bill) Green Network Affiliation: IRIS/USGS - GSN
College Observatory
U.S. Geological Survey
800 Yukon Drive
Fairbanks, Alaska 99775-5160
Network Contact:
Albuquerque Seismic Laboratory
Building 10002 Kirtland AFB East
Albuquerque, NM 87115
Telephone: 303 273-8482 Open Station:
Fax: 303 273-8450 Parent Organization:
Latitude: 64.8738N
Longitude: 147.8511W
Elevation to Sensor: 74.5
Depth to Sensor: 120
Geology: The borehole is drilled into approximately 50 meters of various types of silt and loess. A colluvium layer exists between approximately 55 and 61 meters. Beneath the colluvium to 102 meters there are various types of granitic rocks, from felsic granitic finely grained rock to, at deeper sections, a highly altered granite. From 103 meters to 122 meters lithologies range from phyllite to calc phillite to quartzite at the bottom of the borehole. The surface vault sits atop the silt and loess deposits.
Vault Conditions: The surface vault is climate controlled. The concrete pier is isolated from the floor of the vault.
Site Description: N/A
  Addresses from which to obtain data.
Station Instrumentation
1. Global Seismograph Network - GSN: [ IU ] 14 Jun 1996 to present.