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HISTORY OF LIFE ON EARTH Physical conditions - last 4 billion years major changes: oxygen in atmosphere climate change ocean currents sea level changes
HISTORY OF LIFE ON EARTH Physical conditions - last 4 billion years major changes: oxygen in atmosphere climate change ocean currents sea level changes
215 views
History, Theory, Current Methods, Problems SRJC, Physics 43, Spring 2011 Aaron Krive, Kevin Chee
History, Theory, Current Methods, Problems SRJC, Physics 43, Spring 2011 Aaron Krive, Kevin Chee
216 views
Whats the oldest thing you have ever touched?. Evolution of Landforms and Organisms Continued – Part Two
Whats the oldest thing you have ever touched?. Evolution of Landforms and Organisms Continued – Part Two
218 views
Dating with Radioactivity Chapter 12, Section 3. Basic Atomic Structure Each atom has a nucleus containing protons and neutrons and that nucleus is orbited
Dating with Radioactivity Chapter 12, Section 3. Basic Atomic Structure Each atom has a nucleus containing protons and neutrons and that nucleus is orbited
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Half-Life Pg. 870-874. Half-Life Half-life = the time needed for half of the radioisotope sample to decay into products Half-live can have varying lengths
Half-Life Pg. 870-874. Half-Life Half-life = the time needed for half of the radioisotope sample to decay into products Half-live can have varying lengths
227 views
1.Relative age dating العمر النسبى It could be done by the following: a) Principle of superposition---Initial horizontality: In normal geologic section,
1.Relative age dating العمر النسبى It could be done by the following: a) Principle of superposition---Initial horizontality: In normal geologic section,
216 views
Grand Canyon in Arizona (stratification, bedding) stratification, bedding, stratum (strata) Rock Record and Geologic Time
Grand Canyon in Arizona (stratification, bedding) stratification, bedding, stratum (strata) Rock Record and Geologic Time
219 views
James Ussher (mid 1600's) Georges Buffon (mid 1700s) Lord Kelvin (late 1800's) 75,000 yr 100 m.y. Charles Walcott (1893) 75 m.y. 4004 B.C
James Ussher (mid 1600's) Georges Buffon (mid 1700s) Lord Kelvin (late 1800's) 75,000 yr 100 m.y. Charles Walcott (1893) 75 m.y. 4004 B.C
224 views
Fossils are usually formed when an organism is covered by sediments that then harden into sandstone, slate, mudstone or flint. Most organisms do not fossilize
Fossils are usually formed when an organism is covered by sediments that then harden into sandstone, slate, mudstone or flint. Most organisms do not fossilize
223 views
Fossils Lecture
Fossils Lecture
2.204 views
Geology. The study of the solid Earth and the processes that shape it – Plate tectonics – Past climates – Natural disasters – Fossil Record – Evolution
Geology. The study of the solid Earth and the processes that shape it – Plate tectonics – Past climates – Natural disasters – Fossil Record – Evolution
216 views
What’s the oldest thing you have ever touched?. Evolution of Landforms and Organisms
What’s the oldest thing you have ever touched?. Evolution of Landforms and Organisms
212 views