Superfaults and Pseudotachylytes: Evidence of Catastrophic Earth Movements

Download PDFDownload Superfaults and Pseudotachylytes: Evidence of Catastrophic Earth Movements PDF

by Timothy L. Clarey, Ph.D., Steven A. Austin, Ph.D., Stephen Cheung, B.Sc., and Raymond Strom, Ch.T.

In M. Horstemeyer, ed., 2013, Proceedings of the Seventh International Conference on Creationism, Pittsburgh, PA: Creation Science Fellowship. Visit the ICC at www.creationicc.org.

Abstract

Superfaults often exhibit an unusual rock called pseudotachylyte, and together these two features are critical to our understanding of catastrophic tectonics. Superfaults are rapid-moving, single-slip displacement surfaces involving very large offsets with the moving-block side of the fault being unconfined or unpinned during rapid gravity offset. Pseudotachylyte is the dark-colored, metamorphic silicate glass formed by frictional melting upon the superfault surface at temperature exceeding 1000oC, and often displaying distinctive isotropic or cryptocrystalline optical properties. Pseudotachylyte is understood to be evidence of high-speed rock movement during superquakes, where displacements occurred much faster than during modern magnitude 9 earthquakes. Superfaults, pseudotachylyte and superquakes are interpreted as support for global catastrophic tectonic activity. Hand specimens and field data were collected from Homestake Shear Zone in central Colorado, and from the Pasagshak Thrust, Kodiak Island, Alaska. Thin-section analysis shows the presence of glass melt and/or aphanitic black rocks containing pseudotachylyte, and the development of numerous pressure solution surfaces within cataclasite rocks. Cross-cutting relationships support repeated episodes of fault movement and subsequent melt development at both sites. Data gathered from the Homestake Shear Zone supports rapid catastrophic Earth movements during the formation of the North American continent on Day 3 of the Creation Week. Evidence from the Pasagshak Thrust supports the subduction model of catastrophic plate tectonics, with the fault being active during and after Noah’s Flood. Proceedings of the Seventh International Conference on Creationism. Pittsburgh, PA: Creation Science Fellowship

Keywords

Superfault, pseudotachylyte, cataclasite, black fault rock, subduction, catastrophic plate tectonics, supercritical fluid

For Full Text

Please see the Download PDF link above for the entire article.

The Latest
NEWS
How One Sense Smells a Trillion Scents
Think of all the jobs that our good working sense of smell fulfills. First, the nose detects a chemical—the source of the scent. It distinguishes...

CREATION PODCAST
Our Young Solar System
How old is our solar system, and why does it matter? ICR physicist Dr. Jake Hebert unpacks the answers and gives evidence that supports a young solar...

NEWS
New Shark Species Is Still a Shark
by Frank Sherwin and Jeff Tomkins, Ph.D. Australian and American zoologists discovered a new species of shark.1 Carcharhinus obsolerus was discovered...

NEWS
Saturn's Ring Rain Rates Run Fast
Saturn’s gravity keeps vacuuming up its own stunning rings. NASA scientists have estimated how fast this process happens. The rings lose six Olympic-sized...

NEWS
New Reservoir of Life Eats Oil
Secular geologists have long claimed that oil can survive millions of years underground because it somehow becomes pasteurized at 80 oC (176 oF), preventing...