Geol 101 Sed Rocks Cont

Geol 101 Sed Rocks Cont - Geol 101 Sedimentary Rocks...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Geol 101 Sedimentary Rocks Continued 06/11/2007 13:39:00 Chemical Sediments Precipitation of minerals from solution o pH plants/bacteria (alter pH) o Temperature Water from a hot spring cools Evaporation of sea/like water o Halite o Gypsum Biogenic Sediments Fossils ( Bioclastic  if broken and scattered) Floating marine organisms die, settle, and accumulate on the sea floor o Deep-sea ooze o Calcareous (foraminifera) o Siliceous (Diatom) Transport vs. Deposition A clast in a moving fluid (air, water, ice) will either: o A – move with the fluid o B – fall under it’s own weight o Small clast move easier than big ones Size vs. Velocity Stream velocity Aka shear stress Fig 16.9 and 16.10
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
o                          Clast Size Sorting The separation based on size Stream velocity usually decreases from source to end: small grains are 
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 5

Geol 101 Sed Rocks Cont - Geol 101 Sedimentary Rocks...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online