Sediment and limestone formations

[Vnaz50]

San Antonio, Tx 

Do limestone and/or sediment formations tend to repeat a formation in similar shapes and sizes? The one on the top left appears to be a clay bottle. 

[Missourian]

The answer is yes, to a degree.

 

Relatively homogenous materials can tend to fracture in a certain way. Some limestones will have an angular fracture, and in my experience, often end up in pieces of similar sizes. Fissile shales and thin-bedded sandstones can leave flat pieces of similar thickness and sizes. Concretions embedded in sedimentary rock can be similar if not nearly identical in size with each other.

 

Additionally, streams can sort and deposit fragments of uniform size in places.

 

This thread seems to touch on this subject:

 

http://www.thefossilforum.com/index.php?/topic/110802-universal-geometry-of-geology/

[Vnaz50]

3 hours ago, Missourian said:

The answer is yes, to a degree.

 

Relatively homogenous materials can tend to fracture in a certain way. Some limestones will have an angular fracture, and in my experience, often end up in pieces of similar sizes. Fissile shales and thin-bedded sandstones can leave flat pieces of similar thickness and sizes. Concretions embedded in sedimentary rock can be similar if not nearly identical in size with each other.

 

Additionally, streams can sort and deposit fragments of uniform size in places.

 

This thread seems to touch on this subject:

 

http://www.thefossilforum.com/index.php?/topic/110802-universal-geometry-of-geology/

Thank you