A Sea‐Bottom Seismic Energy Source for Shallow Water Engineering Applications

Author(s):  
R. L. Good ◽  
R. A. Burns ◽  
J. A. Hunter
1970 ◽  
Vol 18 (4) ◽  
pp. 581-599 ◽  
Author(s):  
E. C. BREDE ◽  
R. C. JOHNSTON ◽  
L. B. SULLIVAN ◽  
H. L. VIGER

1969 ◽  
Author(s):  
E.C. Brede ◽  
H.L. Viger ◽  
R.C. Johnston ◽  
L.B. Sullivan

1990 ◽  
Vol 148 ◽  
pp. 35-37
Author(s):  
P Skjellerup ◽  
S.B Smithson ◽  
H.C Larsen

During September 1989 a survey of the Godthåbsfjord area was carried out in order to study the deep seismic structure of high-grade Archaean crust (Bridgwater et al., 1976; McGregor et al., 1986). Refraction profiles were made along Godthåbsfjord and Ameralik. Receiver stations were placed along the fjords and inland to provide cross-profiles and 3-D coverage (fig. 1). Marine air-guns provided the seismic energy source.


2010 ◽  
Vol 127 (3) ◽  
pp. 1786-1786
Author(s):  
James F. Lynch ◽  
Alexey A. Shmelev ◽  
Ying‐Tsong Lin ◽  
Arthur E. Newhall

1906 ◽  
Vol 3 (4) ◽  
pp. 161-168 ◽  
Author(s):  
F. H. Hatch

After the granites, gneisses, schists, and sediments which make up the Swaziland System had been elevated to form a continental area extending over the northern and western portions of South Africa, denudation began, and the material thus produced was carried to the sea to form the Witwatersrand Beds. The nature of these sediments—they consist of conglomerates, grits, and shales—indicates a marine period with shallow-water conditions, which continued almost uninterruptedly during their deposition. They were accumulated first on a sinking, and then on a rising sea bottom, for the lower beds are composed largely of mud and fine sand, conglomerates only becoming abundant in the upper beds, which were formed in the later portion of the period when the sea had become sufficiently shallow to allow of the accumulation of shingle and gravel. There is evidence in the Southern Transvaal that the land from which the sediments were mainly derived lay to the west, the sea to the east, for the lower Witwatersrand Beds, which consist solely of mudstones and fine sandstones in the east, gradually develop conglomerates with a decreasing amount of shale towards the west.


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