Alvin magnetic survey of zero-age crust: CoAxial Segment eruption, Juan de Fuca Ridge 1993

Mathematics – Logic

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

10

Geological Surveys, Lava, Magnetic Anomalies, Magnetization, Mid-Ocean Ridges, Ocean Bottom, Pacific Ocean, Volcanoes, Cooling, Demagnetization, Rock Intrusions

Scientific paper

Magnetic profiles obtained by deep submersible ALVIN across a newly erupted lava flow on the Juan de Fuca Ridge (JDFR) show strong magnetic anomaly fields (greater than 20,000 nT) and high crustal magnetization (greater than 50 A/m contrast) relative to the surrounding older lavas. These results are consistent with previous ideas that extrusive crust is initially highly magnetized. Within the high amplitude magnetic anomaly over the center of the flow, there is a clearly defined deep, 'notch-like' magnetic low. This notch may indicate thermal demagnetization associated with a subsurface feeder dike, weakly magnetized intrusives or altered extrusive rock. If the former mechanism is active, the notch should disappear with time as the dike cools.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Alvin magnetic survey of zero-age crust: CoAxial Segment eruption, Juan de Fuca Ridge 1993 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Alvin magnetic survey of zero-age crust: CoAxial Segment eruption, Juan de Fuca Ridge 1993, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Alvin magnetic survey of zero-age crust: CoAxial Segment eruption, Juan de Fuca Ridge 1993 will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1821127

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.