Science is Fun Fridays!

Wikipedia


Today's post started with a look at the Moeraki Boulders, but expanded into other concretions as well.

A concretion is compact matter that forms within layers of sedimentary rock, as mineral cement drips within the spaces between particles.  The sediment cements around a nucleus, which can be a leaf, a piece of shell, or a fossil. 

Credit: Hidekazu Yoshida

The Moeraki Boulders are mudstone concretions that have been exposed on Keokohe Beach in New Zealand, and are protected in a science reserve.

Sandstone concretions can be found on Bowling Ball Beach in Mendocino County.

Wikipedia

Hematite concretions have even been found on Mars!
Wikipedia


Comments

Post a Comment

Popular posts from this blog

Science is Fun Fridays!

Image
  Science is also serious. You may have heard that a case review is ongoing regarding the safety and science of an abortion pill, called mifepristone, that has been on the market since 2000. It's another attack from antiabortionists who want to restrict others from care and choice for themselves. Of course, the FDA already vetted the drug and numerous studies show the pill is safe and effective. "If courts can go against a whole tremendous amount of scientific evidence, that just doesn't seem right." More Info: Science News News and Politics
Read more

Thanksgiving Open Thread

Image
  Thursday - Thanksgiving The Myths and Lasting Damage Friday - Native American Heritage Day Proclamation Saturday - We'll hit some record stores for Pa, and for the remaining Record Store Day deals. Special Releases Sunday - Relax, drive, dog run.  We'll see. Enjoy your weekend!!
Read more