The Pre-Flood/Flood Boundary: As Defined in Grand Canyon, Arizona and Eastern Mojave Desert, California

Download PDFDownload The Pre-Flood/Flood Boundary: As Defined in Grand Canyon, Arizona and Eastern Mojave Desert, California PDF

by Steven A. Austin, Ph.D. and Kurt P. Wise, Ph.D.

Presented at the Third International Conference on Creationism, Pittsburgh, Pennsylvania, July 18–23, 1994. Published in: Proceedings of the Third International Conference on Creationism, R. E. Walsh (Ed.), pp. 37–47, 1994.

© 1994 Creation Science Fellowship, Inc., Pittsburgh, PA, USA. Published with permission. All rights reserved.

Abstract

The singular events which occurred at the initiation of the Flood should have produced a geologic signature with at least five characteristics: (a) a mechanical-erosional discontinuity (ED) identified by regional structural analysis—probably the most significant unconformity in any given area; (b) a time or age discontinuity (AD) identified by coarse sediments above the erosional unconformity containing lithified fragments of various sedimentary units found below the unconfomrity; (c) a tectonic discontinuity (TD), found at the erosional unconformity, distinguished by substantial regional tectonic disruption, especially at pre-Flood continental margins; (d) a sedimentary discontinuity (SD) consisting of a thick, fining-upward, clastic-to-chemical strata megasequence of regional to inter-regional extent defined at its based by a significant onlap unconformity; (e) a paleontological discontinuity (PD) marked by an increase in abundance of fossils and the first appearance of abundant plant, animal, and/or fungal fossils.

In Grand Canyon of Arizona one of the most significant regional unconformities (ED) is found at or near the top of the Chuar Group. Associated with the unconformity is the Sixtymile Formation—a tectonicsedimentary unit dominated by breccia with large clasts (TD) from the formations below it (AD). The Sixtymile Formation occurs at the bottom of a thick, regionally extensive series of strata called the Sauk Sequence, consisting of the fining-upward clastics, capped by carbonates (SD). Only low-abundance microfossils are known below the unconformity, whereas undisputed animal fossils occur only above the Sixtymile Formation, and there in great abundance (PD). We believe, therefore, that the Sixtymile Formation is the oldest preserved Flood deposit in Grand Canyon of Arizona.

In the eastern Mojave Desert region of California, the Kingston Peak Formation is a very thick, regionally extensive clastic unit containing gigantic breccia clasts (TD) from the formations below it (AD). Associated with the formation is one of the region’s most prominent unconformities (ED). The Kingston Peak Formation is also the lowermost of a very thick, regionally extensive, transgressive, fining-upward, clastic-to-carbonate megasequence (SD) known as the Sauk Sequence. Only low-abundance microfossils are known from the Kingston Peak Formation and below, whereas common animal fossils are only found in rocks above the formation (PD). We believe, therefore, that the Kingston Peak Formation signals the beginning of the Flood in the Mojave region of California and should be correlated with the Sixtymile Formation of Grand Canyon
or Arizona.

Keywords

Flood Model, Pre-Flood/Flood Boundary, Sedimentation, Sedimentary Rocks, Strata, Stratigraphy, Time, Tectonics, Erosion, Paleontology, Fossils, Discontinuity, Unconformity, Southwestern United States, Grand Canyon, Mojave Desert, Precambrian, Cambrian, Paleozoic, Megasequence, Continental Margin, Ocean Flood, Submarine Megaslide, Gravitational Collapse, Megabreccia, Megaclast, Diamictite

For Full Text

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

The Latest
NEWS
"Ancient" Fossil Still Has Hagfish Slime Residue
Hagfish look creepy. They can act creepy, too. Having no bones, they tie themselves into sliding figure eight knots that help them tear mouthfuls of...

CREATION PODCAST
What Do We Do With Darwin Day?
Many secularist and humanist organizations celebrate February 12 as Darwin Day, a day set aside to honor Charles Darwin and his legacy. But is Darwinism...

NEWS
Meteorite Impact Observed During Lunar Eclipse
On January 21, 2019, during a total lunar eclipse, astronomers and amateur stargazers alike saw a small meteorite strike the lunar surface.1 The collision...

NEWS
Revealing Our Fossil Wall
It was an exciting week here at ICR as we watched workers carefully mount nine fossil replicas to the Discovery Center’s exterior wall. Each 12ˈ×12ˈ...

NEWS
Red Algae Lazarus Effect Can't Resurrect Evolution
Jeffrey P. Tomkins, Ph.D. and Timothy L. Clarey, Ph.D. Red algae form one of the main components of coral reefs and were originally thought to have...