Geophysics

"Geology United States Seafloor -

View from GLORIA."

"A review of the tectonic problems of the strike-slip northern boundary of the Caribbean Plate & examination by GLORIA"

W.P. Dilllon, N.T.Edgar, K.M.Scanlon, & D.F.Coleman

Chapter 09

pg: 135

Introduction:

"The Caribbean region, south of Cuba, forms one of the distinct lithospheric plates of the Earth's surface (Case & Holcomb 1980). Targets of a scale appropriate for GLORIA imaging are provided by tectonic disruptions of the seafloor along the plate's northern edge. We selected three areas to survey using GLORIA, which allows us to examine the variety of structures produced along this active plate boundary. In the central Cayman Trough, plate motion and geometry cause extension, which creates a short spreading axis that is not connected to the world rift system; GLORIA is used to analyze the crustal structures that are created. Off northwestern Hispaniola, an irregularity in the plate boundary results in compressional motion, and GLORIA is used to analyze the accretionary wedge that is formed by sediments that are scraped off the North American Plate as it is forced against the Caribbean Plate. North of Puerto Rico, the plates appear to slide past each other with neither compression nor extension, yet, surprisingly, a major oceanic trench exists, which exhibits the world's greatest negative free-air gravity anomaly. Structural trends displayed by GLORIA and earthquake distribution are used to hypothesize the plate interactions that form the trench and analyze the response at a corner of a plate (the North American Plate) that is being overrun by another plate (the Caribbean Plate)."

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My comet impact hypothesis:

During a Comet impact, the following components of an active phase comet all work in unison to alter the surface of our planet, including carving deep trenches, cracking and even vaporizing the crust.

Together, the comet and components compresses a section of the magnetosphere and magnetic field layers into the crust, lithosphere and possibly deeper into the asthenosphere. Impact temperatures will exceed the surface temp of the Sun. Almost double the temperature that the mantle-crust will vaporize at. The Cayman Trench, Puerto Rico Trench, Muertos Trough and surrounding geological record bares the evidence of vaporized and impacted crustal plate.

Within the interior of an active comet plasma coma, due to the nature of incompressible flows of the present gases, the hyper-dynamic flow energy signature, J.I.S.C.(f) Shock, is formed and maintained until velocity of the comet is severely reduced.

This hypervelocity energy signature mirrors Caribbean Plate and contiguous/congruent plates coastlines, seafloor trenches, ridges, seamounts, gulfs, straights, bays, peninsulas, deltas, abyssal plains and many more geomorphological anomalies present in this region.

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J.I.S.C. Shock

= Geomorphological Feature

(hypothesized)

Blunt Leading Edge

= Barbados Ridge Complex

Rayleigh-Taylor Instabilities

= Venezuela Basin, Muertos Trough