| Fine-Scale Record of Faulting in ONR Natural Laboratories |
15 JAN 97 |
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| Authors:
Brian E. Tucholke; Gary E. Jaroslow; W. K. Stewart; Martin C. Kleinrock; WOODS HOLE OCEANOGRAPHIC INSTITUTION MA
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 | We analyzed fault patterns in ocean crust on the west flank of the Mid-Atlantic Ridge at 25 deg 25' - 27 deg 10'N, 45 deg 00' - 49 deg 00'W, using HMR1 long-range sidescan-sonar data and multibeam bathymetry. Our studies show that brittle strain on normal faults varies with respect to intrasegment tectonic setting and with respect to variation in magma input at the rift axis. Our analyses clearly document ... |
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| Morphological and Geophysical Investigation of Western North Atlantic Ocean Crustal Structure: Environmental Work in Support of the Acoustic Reverbation Special Research Program and Morphological and Geophysical Investigation of Western North Atlantic Oce |
JAN 97 |
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| Authors:
Brian E. Tucholke; Gary E. Jaroslow; W. K. Stewart; WOODS HOLE OCEANOGRAPHIC INSTITUTION MA
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| The Acoustic Reverberation Special Research Program required detailed knowledge of large and small scale seafloor roughness, crustal structure, sediment distribution patterns, and material properties of the ocean floor on the MidAtlantic Ridge in order to advance fundamental research on acoustic wave scattering from the ocean bottom and subbottom at low frequencies and over long propagation paths. To provide this information and to improve our understanding of the fundamental geological processes ... |
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| The Geological Record of Oceanic Crustal Accretion and Tectonism at Slow-Spreading Ridges |
DEC 96 |
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| Authors:
Gary E. Jaroslow; MASSACHUSETTS INST OF TECH CAMBRIDGE
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| Studies of the morphology of slow-spreading ridges have contributed enormously to our understanding of the generation of oceanic crust. However, such work has largely been confined to the ridge axis, and therefore is limited in its application. The objective of this Thesis was to interpret the structural development of slow-spreading ridge segments by: (1) delineating the nature, magnitude, and relative importance of primary tectonic and volcanic processes that control crustal ... |
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| Quantitative Analysis of Abyssal Hills in the Atlantic Ocean: A correlation Between Axis Mantle Temperature and Extensional Faulting |
26 NOV 93 |
30 pages |
| Authors:
John A. Goff; Gary E. Jaroslow; Martin C. Kleinrock; Brian E. Tucholke; TEXAS UNIV AT AUSTIN INST FOR GEOPHYSICS
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 | A recent cruise to the ONR Atlantic Natural Lab gathered 100% Hydrosweep bathymetric coverage, >200% MRi side-scan coverage, gravity and magnetics over an area spanning three ridge segments along axis (-25deg25N to - 27deg 10N) and crustal ages from 0 to 30 Ma west of the Mid-Atlantic Ridge. This data set represents a first opportunity for an extensive regional analysis of abyssal created at a slow spreading rate ridge. We ... |
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