Crustal thickness in the southern Appalachians: an analysis of seismic reflections from the Moho, 1984
Wiggins-Grandison, Margaret D.
1980-1989
This thesis presents the first use of the wide angle seismic reflection technique to determine crustal thickness in north-central Alabama. Records of quarry blasts recorded on an array of seismometers were used to determine travel times of reflected P waves from the Mohorovicic discontinuity (the boundary between the crust and the mantle) in the distance range 100 to 150 km. 2 2 The velocity calculated from the slope of a T versus X plot was 6.226 +_ 0.362 km/sec is considered to be more reliable than the depth of 34.9875 _+ 8.8810 km calculated from the intercept. These results are consistent with recent refraction results from this area and indicate a crust of intermediate composition.
text
application/pdf
1984-07-01
thesis
Master of Science (MS)
Atlanta University
Physics
Mickens, Ronald E. Dainty, Anton M.,
Clark Atlanta University
Georgia--Atlanta
http://hdl.handle.net/20.500.12322/cau.td:1984_wiggins_grandison_margaret_d