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Geologic time

Geologic time

Geologic time. Goal. to understand how we determine relative and numerical ages of geologic events. United States timeline. History of the Earth as a cross-country trip ~4600 km. United States timeline. Oldest mineral crystals (4400 m.y.-old) show up at CA/NV border

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520 views • 31 slides
Evolution : The Evidence

Evolution : The Evidence

Evolution : The Evidence. Lines of evidence : The science of evolution. At the heart of evolutionary theory is the basic idea that life has existed for billions of years and has changed over time. Overwhelming evidence supports this fact. Lines of evidence : The science of evolution.

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485 views • 29 slides
VARVE CHRONOLOGY

VARVE CHRONOLOGY

OTHER NUMERICAL DATING TECHNIQUES. VARVE CHRONOLOGY. Lakes can produce annual layers. Usually occur in glacial lakes or those that freeze over in winter. Coarser sediments are deposited in summer. Winter-summer layers are called COUPLETS . Couplets in lakes are known as VARVES .

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776 views • 25 slides
VARVE CHRONOLOGY

VARVE CHRONOLOGY

OTHER NUMERICAL DATING TECHNIQUES. VARVE CHRONOLOGY. Lakes can produce annual layers. Usually occur in glacial lakes or those that freeze over in winter. Coarser sediments are deposited in summer. Winter-summer layers are called COUPLETS . Couplets in lakes are known as VARVES .

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302 views • 25 slides
Digging Up the Past: Paleoanthropology and Archaeology

Digging Up the Past: Paleoanthropology and Archaeology

Digging Up the Past: Paleoanthropology and Archaeology. Lecture Objectives. Identify the importance of fossil in understanding the behavior and anatomy of ancient hominins. Identify the differences between paleoanthropology and archaeology.

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301 views • 20 slides

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