Lecture 9 - Lecture9 ClickerQuestion: 19/02/200808:35:00

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Lecture 9 19/02/2008 08:35:00 Clicker Question: A sedimentary rock with sand sized grains and lots of feldspar is an  arkose. Sedimentary Structures Bedding o Change in Sedimentation Layering Laminations Ripple Marks – due to current going over top of a surface Cross Beds – within bedding there are parallel laminations, as ripples move  along the rocks they ripple on top of each other making layers, these are  cross beds. Graded Beds – Coarser at the bottom of a layer and finer at the tip, more or  less gradient layers in terms of grain sizes. Mud Cracks – Sediment dries out and shrinks then cracks, found usually near  lake beds. Chemical Rocks Organisms Inorganic Limestone o 10% are all Limestone, very common. o Reefs form in warm water from from clastic sources o Fossiliferous Limestone, limestone with fossils. o
Background image of page 1

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

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 02/08/2011 for the course ECONOMICS 101 taught by Professor June during the Spring '08 term at Rutgers.

Page1 / 5

Lecture 9 - Lecture9 ClickerQuestion: 19/02/200808:35:00

This preview shows document pages 1 - 2. Sign up to view the full document.

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