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relative age dating

Reviewer 3

relative age dating
28問 • 1年前Reviewer 3
  • Kathlyn Pascua
    • 通報

    問題一覧

  • 1

    What are the 2 ways Scientists measure geologic time

    Relative age and absolute age

  • 2

    measurement refers only to the order in which the events occurred

    Relative age

  • 3

    is age in years.

    Absolute age

  • 4

    It is a method of determining the age that uses approximation based on the materials they have gathered or observed.

    Relative age dating

  • 5

    -states that layers of sediment are originally deposited horizontally under the action of gravity

    Principle of Original Horizontality

  • 6

    This states that the sedimentary rocks become younger from bottom to top

    Principle of Superposition

  • 7

    This is based on the obvious fact that a rock must first exist before anything can happen to it.

    Principle of Crosscutting Relationships

  • 8

    A rock body that contains inclusions of preexisting rocks is younger than the rocks from which the inclusions came from

    Principle of Inclusions and Components

  • 9

    -observation that assemblages of fossil plants and animals follow or succeed each other in time in a predictable manner, even when found in different places.

    Principle of Faunal Succession

  • 10

    is a set of methods that archaeologists use to determine the age of objects based on the sequence in which they appear in a site of excavation.

    Relative age dating

  • 11

    states that the geologic feature which cuts another is the younger of the two features.

    Principle of cross cutting relationship

  • 12

    produce contact metamorphism along their contacts with the older rocks they intrude into

    Intrusive rocks

  • 13

    are preexisting rocks that have been metamorphosed (changed into different rocks) by large amounts of heat and pressure in a region.

    Metamorphic rocks

  • 14

    Layers of sedimentary rocks are conformable if they were deposited without detectable interruption in deposition, usually of long duration

    Uncomformities

  • 15

    - It is formed when sediment layers are uplifted without folding but are exposed to weathering and erosion, creating an irregular surface.

    Disconformity

  • 16

    - It is formed when igneous or metamorphic rocks come in contact with sedimentary beds, indicating a period of uplift and erosion of previous metamorphic or igneous rocks before younger sedimentary beds were formed

    Nonconformity

  • 17

    It is an originally deposited horizontal layer that has been folded (or tilted), weathered, and eroded

    Angular Unconformity

  • 18

    Two (2) Kinds of Correlation

    Time Correlation and Lithologic Correlation

  • 19

    age equivalence

    Time Correlation

  • 20

    continuity of a rock unit

    Lithologic Correlation

  • 21

    6 law of stratigraphy

    Uniformitarianism, Original Horizontality, Superposition, Cross-Cutting Relationships, Inclusions and Components, Faunal Succession

  • 22

    This principle states that all geological processes known today also occurred in the past, operating slowly throughout the ages.

    Uniformitarianism

  • 23

    Also known as the principle of lateral continuity it states that materials forming any stratum were continuous on the Earth's surface unless some other bodies stood in the way

    Original Horizontality

  • 24

    This principle is based on the assumptions of materials appearing in pre-existing rock layers, evident through igneous dikes forming in sedimentary beds

    Cross cutting relationship

  • 25

    An inclusion is any foreign material found in another material.

    Inclusions and Components

  • 26

    is an unconformity where the strata are parallel with each other, while the contact is just a simple bedding plane indicative of continuous deposition

    Paraconformity

  • 27

    Establishment of correlation between strata using the physical characteristics between these strata.

    Physical correlation

  • 28

    Establishment of correlation between strata utilizing fossils (called index or guide fossils), which can be present or not.

    Fossil correlation

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    問題一覧

  • 1

    What are the 2 ways Scientists measure geologic time

    Relative age and absolute age

  • 2

    measurement refers only to the order in which the events occurred

    Relative age

  • 3

    is age in years.

    Absolute age

  • 4

    It is a method of determining the age that uses approximation based on the materials they have gathered or observed.

    Relative age dating

  • 5

    -states that layers of sediment are originally deposited horizontally under the action of gravity

    Principle of Original Horizontality

  • 6

    This states that the sedimentary rocks become younger from bottom to top

    Principle of Superposition

  • 7

    This is based on the obvious fact that a rock must first exist before anything can happen to it.

    Principle of Crosscutting Relationships

  • 8

    A rock body that contains inclusions of preexisting rocks is younger than the rocks from which the inclusions came from

    Principle of Inclusions and Components

  • 9

    -observation that assemblages of fossil plants and animals follow or succeed each other in time in a predictable manner, even when found in different places.

    Principle of Faunal Succession

  • 10

    is a set of methods that archaeologists use to determine the age of objects based on the sequence in which they appear in a site of excavation.

    Relative age dating

  • 11

    states that the geologic feature which cuts another is the younger of the two features.

    Principle of cross cutting relationship

  • 12

    produce contact metamorphism along their contacts with the older rocks they intrude into

    Intrusive rocks

  • 13

    are preexisting rocks that have been metamorphosed (changed into different rocks) by large amounts of heat and pressure in a region.

    Metamorphic rocks

  • 14

    Layers of sedimentary rocks are conformable if they were deposited without detectable interruption in deposition, usually of long duration

    Uncomformities

  • 15

    - It is formed when sediment layers are uplifted without folding but are exposed to weathering and erosion, creating an irregular surface.

    Disconformity

  • 16

    - It is formed when igneous or metamorphic rocks come in contact with sedimentary beds, indicating a period of uplift and erosion of previous metamorphic or igneous rocks before younger sedimentary beds were formed

    Nonconformity

  • 17

    It is an originally deposited horizontal layer that has been folded (or tilted), weathered, and eroded

    Angular Unconformity

  • 18

    Two (2) Kinds of Correlation

    Time Correlation and Lithologic Correlation

  • 19

    age equivalence

    Time Correlation

  • 20

    continuity of a rock unit

    Lithologic Correlation

  • 21

    6 law of stratigraphy

    Uniformitarianism, Original Horizontality, Superposition, Cross-Cutting Relationships, Inclusions and Components, Faunal Succession

  • 22

    This principle states that all geological processes known today also occurred in the past, operating slowly throughout the ages.

    Uniformitarianism

  • 23

    Also known as the principle of lateral continuity it states that materials forming any stratum were continuous on the Earth's surface unless some other bodies stood in the way

    Original Horizontality

  • 24

    This principle is based on the assumptions of materials appearing in pre-existing rock layers, evident through igneous dikes forming in sedimentary beds

    Cross cutting relationship

  • 25

    An inclusion is any foreign material found in another material.

    Inclusions and Components

  • 26

    is an unconformity where the strata are parallel with each other, while the contact is just a simple bedding plane indicative of continuous deposition

    Paraconformity

  • 27

    Establishment of correlation between strata using the physical characteristics between these strata.

    Physical correlation

  • 28

    Establishment of correlation between strata utilizing fossils (called index or guide fossils), which can be present or not.

    Fossil correlation