USGS Professonal Paper 1096 - IRIS

MINNESOTA
Minneapolis, MN
GENERAL INFORMATION
Operated by:
Address:
University of Minnesota
Department of Geology and Geophysics
University of Minnesota
Mi~neapolis , MN 55455
Telephone: 612-373-3137
Address to obt!d n re!'oLd::; .
SITE INFORMATION
A, above. WWSSN records:
NatlOnai Geopnysl.cal and 501at-TeiipsLrial Bata eEIitEI
NOAA/EDS, 062
Boulder, CO 80302
Code
Station
name
Latitude Longitude Elev Date Date
Foundation; geologic
(deg N.) (deg W. ) (meters) opened closed '.'
(CH1) Central Minn. 1-------- 45.9339 93.3546 324 1/01/77 Open-- Hinckley 'nd Fond du Lac Formations;
Precambrian.
(CM2) Central Minn. 2-------- 45.9791 93.1696 323 1/01/77 --do-- Do.
(CM3) Central Minn. 3-------- 43.8801 93.0162 294 1/01/77 --do-- Do.
(CH4) Cent.ral Mifln. 4-------- 45.7500 93. 1033 298 1/01/77 --do-- Do.
(CM5) Central Minn. 5-------- 45.7939 93. 3279 298 1/01/77 --do-- Do.
(CM6) Central Minn. 6-------- 45.8665 93.2073 310 1/01/77 --do-- Do.
OUL Duluth----------------- 46.8200 92. 0833 340 1952 1961 Duluth Complex; Precambrian.
MFM Ford Plant, st. Paul--- 44.9141 93. 1936 226 6/76 Open-- St. Peter Sandstone; Middle Ordovl.cl.an.
MNM l1inneapolis------------ 44.9740 93.2381 204 12/74 1976 Do.
tlIIN Minneapo]is------------ Illl 911l1l 93 1900 211 1964 1967 Do.
INSTRUMENTATION
Sei smometer Galvo Typ, Magnification
Code TypE' COmPOnE'nt To(sec) Tg(sec) recording ,t T
0
Remarks
(CHI-6) GeQtecb S-13--------- Z 1 .0 ... Magnetic taEe . .. Telemetered to MNM.
DUL Wilson-Lamison------- Z 1.1 0.58 P,n .. d ink ... ...
Modified Sprengnether NS,EW 6.0 6.5 ---do------ ... ...
MFM Geotech 5-13--------- Z 1.0 ... ---do------ 5 K ...
MNM ---do---------------- Z 1.0 . .. Magnetic tape . .. ...
MNN Benioff 1051, 1101--- Z,NS,EW 1.0 0.75 Photo paper ... ww5SN.
5prengnether--------- Z,NS,EW 15.0 100.0 ---do------
... Do .
Timing system: IIWVB directly recorded on tape. MNN uses Accutron one-minute marks with WWVB superimposed once a day.
System response curves:
Available from station.
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