Slide 113 Chapter 13 Earths History Slide 2 Precambrian History 13.1 Precambrian Time: Vast and Puzzling The Precambrian – encompasses immense geological time From Earths…
[American Journal of Science, Vol. 306, December, 2006, P. 799 – 845, DOI 10.2475/10.2006.02] ORDOVICIAN 40Ar/39Ar PHENGITE AGES FROM THE BLUESCHIST-FACIES ONDOR SUM SUBDUCTION-ACCRETION…
Slide 1 Warm Up 1/15/08 1. 1.The most common Precambrian fossils are layered mounds of calcium carbonate called ____. a. prokaryotesc. stromatolites b. trilobitesd. chert…
Slide 1 Precambrian History 18.2 Precambrian Time: Vast and Puzzling The Precambrian encompasses immense geological time, from Earth’s distant beginnings 4.56 billion…
Slide 1 13 Chapter 13 Earth’s History Slide 2 Precambrian History 13.1 Precambrian Time 4.56 billion years ago until the start of the Cambrian period, over 4 billion…
Slide 1 Precambrian History 13.1 Precambrian Time: Vast and Puzzling The Precambrian encompasses immense geological time, from Earth’s distant beginnings 4.56 billion…
18.2 Precambrian Time: Vast and Puzzling The Precambrian encompasses immense geological time, from Earth’s distant beginnings 4.56 billion years ago until the start…
Slide 1 Fluvial Systems Alluvial Fan, Meandering River, Braided River Amy Asanuma Zack St.Clair Alluvial Fan Poorly Sorted Sediments with abundant gravel sized detritus Boulders…