What are UNCONFORMITIES?
The LAW of SUPERPOSITION is easy. What about this?
The LAW of SUPERPOSITION is easy. What about this?
The LAW of SUPERPOSITION is easy. What about this?
The LAW of SUPERPOSITION is easy. What about THIS!!??
BBC Look at BBC vid exerpt: “How did we get here?”…do quiz. http://www.dailymotion.com/video/x1dp3l7_how-did-we-get- here-the-story-of-science-nova-discovery-history-space- documentary-hd_t 1-8 exploration & archiving diversity 12-17 minutes (fossilized Paris) 22:45-27 minutes (age of Earth experiment) 27-33 minutes (Geology inventor, Scottish unconformity—deep time—we are extensions of life) 39-42 Darwin 42-51 Wegener & plate techtonics, continental drift & biological evolution
UNCONFORMITIES are GAPS or deformations in our geologic records that say “something BIG happened here!”
UNCONFORMITIES are GAPS or deformations in our geologic records that say “something BIG happened here!”
deformations
deformations draw a deformed face next to this word in your notes!
deformations
causes of unconformities: The Sawatch Sandstone was once again the subject of my interest. It is well exposed on the side of an onramp just west of town. Here's a picture of the unconformity between the Sawatch and the Pike's Peak Granite. Fantastically well exposed, as usual it seems. What is amazing is how little relief there is on the unconformity. Perhaps a decimeter in the area I saw it, which is impressive considering there is about 500 million years of time missing. GAPS
The Sawatch Sandstone was once again the subject of my interest The Sawatch Sandstone was once again the subject of my interest. It is well exposed on the side of an onramp just west of town. Here's a picture of the unconformity between the Sawatch and the Pike's Peak Granite. Fantastically well exposed, as usual it seems. What is amazing is how little relief there is on the unconformity. Perhaps a decimeter in the area I saw it, which is impressive considering there is about 500 million years of time missing.
causes of unconformities: The Sawatch Sandstone was once again the subject of my interest. It is well exposed on the side of an onramp just west of town. Here's a picture of the unconformity between the Sawatch and the Pike's Peak Granite. Fantastically well exposed, as usual it seems. What is amazing is how little relief there is on the unconformity. Perhaps a decimeter in the area I saw it, which is impressive considering there is about 500 million years of time missing. GAP
causes of unconformities:
causes of unconformities: e____q____s mud_____s
causes of unconformities: e____q____s mud_____s fl___ds ts______s r_____g r_v___s m_______rs v_______s h__r_____es
causes of unconformities: e____q____s mud_____s fl___ds ts______s r_____g r_v___s m_______rs v_______s h__r_____es
causes of unconformities: e____q____s mud_____s fl___ds ts______s r_____g r_v___s m_______rs v_______s h__r_____es
causes of unconformities: earthquakes mudslides floods tsunamis rushing rivers meteors volcanos hurricanes
causes of unconformities: earthquakes mudslides floods tsunamis rushing rivers meteors volcanos hurricanes NATURAL DISASTERS INVOLVING EROSION!
UNCONFORMITIES are GAPS or deformations in our geologic records that say “something BIG happened here!” unconformity=catastrophic geologic event… earthquake, volcano, mudslides, meteors etc.
Here’s an example of an unconformity.
HERE’S AN EXAMPLE OF AN UNCONFORMITY. First, S was formed, then
HERE’S AN EXAMPLE OF AN UNCONFORMITY HERE’S AN EXAMPLE OF AN UNCONFORMITY. First, S was formed, then r,q,p,o… O P Q R S
HERE’S AN EXAMPLE OF AN UNCONFORMITY HERE’S AN EXAMPLE OF AN UNCONFORMITY. First, S was formed, then r,q,p,o…then BOOM! O P Q R S
HERE’S AN EXAMPLE OF AN UNCONFORMITY HERE’S AN EXAMPLE OF AN UNCONFORMITY. First, S was formed, then r,q,p,o…then BOOM--UNCONFORMITY! U O P Q R S
HERE’S AN EXAMPLE OF AN UNCONFORMITY HERE’S AN EXAMPLE OF AN UNCONFORMITY. First, S was formed, then r,q,p,o…then BOOM--UNCONFORMITY! Afterwards, layers f, d & e formed. E D F U O P Q R S
Moving on… Which one (left or right) had the FAULT happen BEFORE the INTRUSION? What happened between layers A & B? D E D
CAN WE DATE THESE LAYERS FROM OLDEST TO YOUNGEST?
Can you spot the unconformity?
Can you spot the unconformity?
Go to What’s an unconformity” Kids work in pairs with whiteboards to tell the story about rocks from Portugal! Then to rock ice cores…