Original horizontality Study guides, Class notes & Summaries
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GEO 401 exam 2 2023 with 100% correct answers
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The Earth's upper mantle is mainly made of peridotite, an ultramafic igneous rock with lots of olivine crystals. Which type of magma can be produced when the upper mantle undergoes decompression melting of the upper mantle peridotite at mid-ocean ridges? - correct answer -Basaltic 
 
Seismic studies of the earth have shown that the platnet's interior is made of a few layers with distinct seismic signatures and chemical compositions. The major layers of the planet include (from innermost to the o...
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Rutgers Dinosaurs Exam 1 questions with correct answers
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Nicholas Steno Answer This man became a catholic bishop, challenged the tear theory, and is known as the Father of Stratigraphy 
 
Law of Original Horizontality Answer This principle states sediments are deposited under the influence of gravity as nearly horizontal beds. 
 
Law of Superposition Answer This principle states that top layers of rock are younger than bottom layers. 
 
Law of Faunal (Flaural) Succession Answer Sedimentary rock strata contain fossilized flora and fauna that these foss...
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PHSC 211 Chapter 5 (A grade)
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PHSC 211 Chapter 5 Quiz (Fall 2020)– Liberty University (A grade) 
 
 
 
For questions 1-6, refer to the diagram above. 
 
1. What type of unconformity is located between B and E? 
a. Nonconformity 
b. Disconformity 
c. Angular unconformity 
d. Paraconformity 
2. What kind of unconformity is located between D and E? 
a. Nonconformity 
b. Disconformity 
c. Angular unconformity 
d. Paraconformity 
3. Which unit is oldest? 
a. A 
b. B 
c. C 
d. D 
e. E 
4. Which unit is youngest? 
a. A 
b. B 
c....
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EAS 201 Exam Questions With Verified Answers
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EAS 201 Exam Questions 
With Verified Answers 
Principle of superposition - ANSWER oldest layer = bottom, 
newest layer = top 
Principle of original horizontality - ANSWER sediment originally 
deposited in layers that were nearly horizontal and parallel to the 
surface on which they were accumulating, tilted rocks = crustal 
disturbance 
Principle of original lateral continuity - ANSWER all strata extend 
in all directions until they terminate by THINNING at the margins 
of the basin, end...
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EAS 201 Exam Questions With Verified Answers
- Exam (elaborations) • 17 pages • 2023
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EAS 201 Exam Questions 
With Verified Answers 
Principle of superposition - ANSWER oldest layer = bottom, 
newest layer = top 
Principle of original horizontality - ANSWER sediment originally 
deposited in layers that were nearly horizontal and parallel to the 
surface on which they were accumulating, tilted rocks = crustal 
disturbance 
Principle of original lateral continuity - ANSWER all strata extend 
in all directions until they terminate by THINNING at the margins 
of the basin, end...
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GEOL 102 Exam 1 GMU Questions And Answers With Latest Study Quiz
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Physical geology vs. Historical geology - Physical geology deals with materials and processes that 
make up the Earth, Historical geology is applying chronology to events in Earth's past 
Relative age - Determination that something is younger or older than something else 
Absolute Age - Precise measurement of how much time has passed since something was created 
or modified 
Fossils - Remains, traces, or other indications of life 
Principal of Original Horizontality - Sediment is deposited in l...
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Earth Science Lab Final (Answered) Complete Verified Solution
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Earth Science Lab Final (Answered) Complete Verified Solution 
 
Noncomformity 
1) Younger sedimentary rocks on top of older metamorphic or intrusive igneous rocks 
 
2) Imply period of uplift of deeply buried rocks 
Three types of uncomformities 
angular uncomformity, disconformity, and noncomformity 
Radiocarbon dating 
Using the carbon-14 isotope to date very recent events 
 
(Half-life of carbon-14 is only 5,730 years) 
(Only useful for dating events from historic past and very recent geolog...
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Fossils Science Olympiad Exam Questions And Answers 100% Verified
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Fossils Science Olympiad Exam Questions 
And Answers 100% Verified 
Conditions required for a plant or an animal to become fossilized - answerHard body parts 
(bones, teeth, shells) - soft body parts will not fossilise, but may leave behind trace evidence (e.g. 
imprints) 
-Preservation of remains (protection against scavenging, erosion and environmental damage) 
-High pressure to promote mineralisation of remains (i.e. turn hard body parts into fossilised 
rocks) 
-Anoxic (low oxygen) condition...
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ESC 2000 Exam #3 (with Complete Solutions)
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Catastrophism correct answers the concept that earth was shaped by catastrophic events of a short-term nature; the present is the key to the past; James Usher constructed a chronology of human and Earth history; determined that the Earth was created in 4004 B.C.; The chronology gained wide acceptance during the mid-1600s by the scientific and religious leaders 
 
Uniformitarianism correct answers the concept that the processes that have shaped the earth in the geological past are essentially the...
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Week 7: Palaeontology and stratigraphy
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(1) Which of the following would NOT be considered a fossil? 
(a) a dinosaur bone 
(b) a dinosaur footprint 
(c) the impression of a fern leaf 
(d) a basalt dyke 
(2) In which of the following rocks would you be most likely to find fossils? 
(a) gneiss 
(b) limestone 
(c) granite 
(d) basalt 
(3) What type of fossil is shown in the picture? 
(a) body fossil 
(b) trace fossil 
(c) permineralized fossil 
(d) cast fossil 
(4) Why are feathers rarely found in the fossil record? 
(a) because birds us...
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