Flumes Zoom in on Mud Rock History | The Institute for Creation Research
Flumes Zoom in on Mud Rock History

For decades, museums and textbooks confidently asserted that mud rocks—such as limestone, siltstone, mudstone, and shale—were formed over vast eons as super-fine sediments slowly settled to the bottom of shallow lakes or seas.

But new flume studies are challenging old ways of thinking about mud rock formation. In these experiments, oblong track-shaped tanks are used to investigate how sediments accumulate beneath water flowing at various rates.

It turns out that fine sediments suspended in solution tend to clump together to form “floccules.” These then behave like sand grains and are deposited by tumbling out into thin layers. Sometimes the flume studies’ deposit patterns include ripple marks. Indiana University sedimentologists were able to clearly identify the same tiny ripple features in Cambrian shales.1

If Cambrian mud rocks actually formed from fast sediment flow like these flume studies indicate, instead of slow silt accumulation, then perhaps the other mud rocks that comprise so much of the earth’s continents were formed similarly. This fits with the whole earth’s surface having been a slurry of sediment during the worldwide Flood described in Genesis.

Creation geologists have doubted the claim of sedimentation occurring gradually over long periods of time because of its incongruity with the biblical record and because of empirical evidence found in modern mud rocks themselves. For example, if these massive and broad mud rock strata were deposited by the slow accumulation of sediments over millions of years, then why are worm and clam burrows and plant root tunnels missing from the upper portions of the layers? If the deposits were near earth’s surface for very long at all, they should have records of the animal and plant activity known to mix and disturb freshly deposited sediments within weeks.2

The authors of the new study suggested that if others continue to find these similar cross-laminated ripple patterns, identifiable in both the flume studies and in shale from the field, then “this approach can change our perception of the depositional setting of certain mudstone successions.”1 It may even contribute to a change in the perception of the whole evolutionary timing scheme that has been uncritically accepted for too long in most investigations of earth’s rock history.

References

  1. Scheiber, J., and Z. Yawar. 2009. A New Twist on Mud Deposition – Mud Ripples in Experiment and Rock Record. The Sedimentary Record. 7 (2): 4-8.
  2. Gingras, M. K. et al. 2008. How fast do marine invertebrates burrow? Palaeogeography, Palaeoclimatology, Palaeoecology. 270 (3-4): 280-286.

* Mr. Thomas is Science Writer at the Institute for Creation Research.

Article posted on July 24, 2009.

The Latest
CREATION PODCAST
What Happened with Washington's Violent Volcano? | The Creation...
How did a 1980 volcanic eruption change our understanding of geology? What impact did this event have on the age assignments of sediments? Join us for...

NEWS
Fossil Insect Predation Shows No Evidence of Evolution
Some recent science news stories have come out describing fossils of insects feeding on plants supposedly many “millions of years ago.” What...

NEWS
Adaptive Genetic and Epigenetic Changes in Plants
Being sedentary organisms, plants are essentially stuck where they are planted and need to dynamically adapt to the conditions around them to not only...

NEWS
Dr. Tim Clarey Awarded Adjunct Professor of the Year
Congratulations to ICR Research Scientist and geologist Dr. Tim Clarey! He received the Adjunct Professor of the Year award from King’s University,...

NEWS
Mars Rover Records Dramatic Solar Eclipse
NASA’s Mars Perseverance rover has filmed the Martian satellite (or moon) Phobos eclipsing the sun, and this short but impressive video may be viewed...

CREATION PODCAST
Darwin or Design? CET Pt. 2 | The Creation Podcast: Episode 22
How does design provide a better explanation for biological functions and adaptations than natural selection? And how can engineering principles help...

NEWS
Resurrecting “Ancient” Enzymes?
The most abundant protein on Earth is probably an enzyme (biological catalyst) called RuBisCO (or Rubisco) designed by the Creator to function in photosynthesis.1...

NEWS
Inside May-June 2022 Acts & Facts
How can Christians stand up to scientific elitism? What does the plant fossil record in Iceland tell us about the global Flood? Does a new bacterium...

ACTS & FACTS
Creation Kids: Grand Canyon
by Christy Hardy and Susan Windsor* You’re never too young to be a creation scientist! Kids, discover fun facts about God’s creation...

ACTS & FACTS
Caring for the People in Your Life
Many people relate stewardship to managing money. When they consider their resources, money comes to mind, along with vehicles, homes, investments,...