BIO211H5 Lecture Notes - Unconformity, Phanerozoic, Cenozoic

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viridiancockroach622

30 Apr 2012

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Units of time geochronologic (time) units: interval during which a time-rock unit is formed chronostratigraphic (time-rock) units: all the strata in the world deposited during a particular interval of time early and late upper and lower. Magnetic properties of rocks are used to characterize and correlate rock units polarity of earth"s magnetic field is recorded in rocks when they crystallize or settle from water chron: polarity-based time-rock unit o o normal interval reversed interval. Lithostratigraphy lithostratigraphy units: 3d bodies of rock identified by physical or chemical characteristics, divided into smaller units: group formation member bed. Marker bed: same age throughout bed ex. cretaceous volcanic eruptions evaporites: distinct patterns and geochemistry of layers. Facies boundaries facies: distinctive sedimentary rock unit formed under particular conditions correlating sections within a basin point of maximum transgression. Seismic stratigraphy seismic waves artificially produced, send into strata waves bounce off physical discontinuities within sediments creates an image of the subsurface discontinuities and unconformities can be identified.

Related Questions

Compared to australopithecines and modern humans, what were Homo erectus limb bones?

Australopithecus afarensis

all of these

the fossil skeleton known as âLucyâ belongs to this species

is found in southern and eastern Africa

is the largest well-studied collection of early hominins

the earliest primates are found in which epoch?

All of the Eocene primates have modern primate descendants.

False

True

If an isotope has a half-life of 4 billion years, then in 4 billion years what will happen?

all of the original amount will have decayed

half of the original amount will still be present

a quarter of the original amount will still be present

all of the original amount will still be present

Biostratigraphy is a type of relative dating technique.

True

False

Which dating technique could you use to get an estimated age in years from a bone that is known to be less than 40,000 years old?

"John is two years older than Joe." This statement is an example of

a chronometric comparison

a theory

an absolute date

a relative date

The task of interpreting early hominin evolution

is still not complete

is best left to geologists

rarely replies on assigning taxonomic names to fossil material

does not require a chronological framework

The earliest possible hominin found to date has been given the name __ and was discovered in __.

Ardipeithecus / East Africa

Sahelanthropos / Central Africa

Australopithecus / the Rift Valley

Orrorin / the Fayum

Compared to australopithecines and modern humans, what were Homo erectus limb bones?

Australopithecus afarensis

all of these

the fossil skeleton known as âLucyâ belongs to this species

is found in southern and eastern Africa

is the largest well-studied collection of early hominins

The earliest primates are found in which epoch?

All of the Eocene primates have modern primate descendants.

False

True

If an isotope has a half-life of 4 billion years, then in 4 billion years what will happen?

all of the original amount will have decayed

half of the original amount will still be present

a quarter of the original amount will still be present

all of the original amount will still be present

Biostratigraphy is a type of relative dating technique.

True

False

Which dating technique could you use to get an estimated age in years from a bone that is known to be less than 40,000 years old?

"John is two years older than Joe." This statement is an example of

a chronometric comparison

a theory

an absolute date

a relative date

The task of interpreting early hominin evolution

is still not complete

is best left to geologists

rarely replies on assigning taxonomic names to fossil material

does not require a chronological framework

The earliest possible hominin found to date has been given the name __ and was discovered in __.

Ardipeithecus / East Africa

Sahelanthropos / Central Africa

Australopithecus / the Rift Valley

Orrorin / the Fayum

1. Build a dichotomous key to all the tissues you have seen in the lab. For this, you can use any of their morphological characteristics (under the microscope) but not their physiological functions.

Tissues seen in the lab:

Epithelia: simple squamous, simple cuboidal, simple columnar, pseudostratified columnar, stratified squamous, stratified cuboidal and columnar, transitional, Globet cells.

Connective: adipose, areolar, hyaline cartilage, fibrocartilage, fibrocartilage, elastic cartilage, bone, blood

Muscle: smooth, muscle, cardiac muscle, skeletal muscle

Nervous: neuron cells, glial cells

BIO211H5 Lecture Notes - Unconformity, Phanerozoic, Cenozoic

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