![THE PRINCIPLE OF UNIFORMITY: ,[object Object],Looking at features of rocks and rock outcrops](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
Recommandé
Contenu connexe
Tendances
Tendances (19)
En vedette
En vedette (20)
Similaire à Interpreting geologichistoryupdated2
Similaire à Interpreting geologichistoryupdated2 (20)
Plus de West Hollow MS Ms. Gill
Plus de West Hollow MS Ms. Gill (20)
Dernier
Dernier (20)
Interpreting geologichistoryupdated2
- 11. oldest youngest
- 15. Law of Inclusions Which is older the Granite or the Sandstone? In figure A? In figure B? Sandstone is older Granite is older
- 27. FOSSILS GIVE US INFORMATION ABOUT THE ANCIENT ENVIRONMENT AND CLIMATE
- 31. Sedimentary layers (the law of original horizontality)
- 36. The fault came after the rock was formed
- 37. Sedimentary layers The tilt came after the the rock was formed
- 38. The extrusion came after the rock was formed 1 2 3 4 5 Contact metamorphism
- 39. 1 2 3 4 5 6 The extrusion came after the lower layers were formed but…. Before the top layer
- 40. 1 2 3 4 5 This intrusion came after all the layers
- 55. Law of Original Lateral Continuity
- 60. You can match the rock strata in one location with rock strata in more distant locations by Comparing , c o l o r texture composition sequence of layers
- 61. Time correlation compares ____________ contained in the rock strata index fossils 1 2 3 4 4 5 6 3
- 63. Which fossil would make the best index fossil? Found in only 1 layer (short lived) Found in all samples (widespread)
- 64. Another way of correlating layers by time is through ___________________ Volcanic ash falls
- 65. These ash falls are very ________ events. A single layer of ______ can be found over a large area, this allows geologists to make a__________________ from one location to another at the position of a common ash fall. brief ash time correlation
- 77. NEW BOTTOM LAYER APPEARS (EMERGES)
- 78. LAYER C IS MISSING EROSION
- 79. EROSION
- 80. THE UNCONFORMITY IS THE BURIED EROSIONAL SURFACE BETWEEN B AND D
- 83. ACTIVITY WHICH IS OLDER
- 89. ISOTOPE: An unstable element with different number of neutrons than a normal (stable) element. (Its unstable so wants to change to stable)
- 90. EX. C C 6 6 12 14 6 protons 6 protons 6 neutrons Unstable 8 neutrons
- 91. EX. C C 6 6 12 14 6 protons 6 protons 6 neutrons 8 neutrons unstable
- 92. D. If the nucleus has more or fewer than the normal number of ____________, the isotope may be ____________ neutrons radioactive (unstable)
- 94. This process is called… Radioactive Decay
- 105. Original=100% Decay product=0% 100/0 Or 1 to 0
- 106. Original=50% Decay product=50% 50/50 Or 1 to 1 After one Half-life:
- 107. Original=25% Decay product=75% 25/75 Or 1:3 After two Half-lives:
- 108. Original=12.5% Decay product=87.5% 12.5/87.5 After three Half-lives:
- 109. Original=6.25% Decay product=93.75% 6.25/93.75 After four Half-lives:
- 110. N 14 Ar 40 Pb 206 Sr 87 5.7 x 10 3 1.3 x 10 9 4.5 x 10 9 4.9 x 10 10 Element Decay Product Half-life