GEOLI105 -Physical Geology Lab Exam I1- Fall 2017 Course Ref. Number: 13329-Room
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GEOLI105 -Physical Geology Lab Exam I1- Fall 2017 Course Ref. Number: 13329-Room: N938-T: 2:30PM-5:1SPM (Question 1-9) Directions: Match definitions with terms found in the provided word bank (Page I), answers must be legible. (I Point Each) 1-3 Word/Term Bank Principle of Fossil Succession Principle of Inclusions Principle of Original Horizontality Principle of Original Lateral Continuity Principle of Superposition Half-Life Absolute/Numerical Geologic Ages Angular unconformity Cross-Stratification Daughter Decay Constant Disconformity Eras Epochs Eons Fossils Isotopes Mass Numbers Mud Cracks Oscillation Ripple Marks Parent Periods Precambrian Principle of Cross-Cutting Relations Principle of Fossil Assemblages Relative Ages Relative Geologic Age Relative Sequence Unconformity Geologic Time Scale Definitions: 1. Characteristic groups of fossil organisms also define unique geologic ages are known as 2. Fossil organisms succeed one another in time in a definite and recognizable order is known as princinle of fossil sucressic 3. Geologists now are able to determine quite precisely the dates, or elat ivc aroloaic aof many types of geologic events. events using simple observational techniques. based on distinctive fossil assemblages and globally important geologic features, such as yn Geologic s. The Al's olue Isuynevical (S subdivides Earth's history into unequal intervals widespread unconformities the proportion of a starting mass of a given isotope that will decay away in a year. spontaneously break down or deca 6. The eny constant which is directly related to the half-life, describes adionct ive ; that is their nuclei 7. Some isotopes of elements are s. Mud CYOCYS_form when mud dries and shrinks, in cross section, the cracks are wider at the top than at the bottom. 11/07/2017 I |PageExplanation / Answer
1.Characteristics group of fossils organisms define a geological age which is called index fossil as it wide in range and the time span of these kind of fossils are very small .so these represents a specific geological age .
2.Fossil organisms succeed in living one after another in specific order is called survival of fittest given by Charles Darwin in evolution of life .
3.Geologists now are quite precisely date the rocks and by dating the rocks of different areas they correlate them so the answer would be relative age of different rocks .
4.Different events are marked by geologists in the past by observation technique ,which they did to know the sequence of events so that can predict the formation of that area and geological history of that area .
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