Geology 110 Review Labs Monday, April, 18, 7:00-9:00 (Dan & Allen) Tuesday, April, 19, 5:00-7:00 (Allen & Meghan) Wednesday, April, 20, 5:00-7:00 (Susan & Kim) Thursday, April, 21, 5:00-7:00 (Erin & Susan) Friday, April, 22, 3:00-5:00 (Bethany & Kevin) Sunday, April, 24, 4:00-6:00 (Bethany & Kim) Monday, April, 25, 7:00-9:00 (Dan & Meghan) Tuesday, April, 26, 7:00-9:00 (Kevin) Wednesday, April, 27, 6:00-8:00 (Catherine) Thursday, April, 28, 5:00-7:00 (Erin & Catherine) Relative Dating Techniques 1.Stratigraphic Record i.principle of original horizontality ii.principle of superposition Relative Dating Techniques 1.Stratigraphic Record iii.Law of Lateral Continuity iv.Law of Inclusions v.Cross-cutting relations Relative Dating Techniques 1.Stratigraphic Record v.unconformities (1)disconformity: erosion removes a part of otherwise undisturbed rock (2)angular unconformity: rocks below are at an angle in relation to those above (3)nonconformity: sedimentary rocks lie on top of igneous rocks 2.Determining absolute time i.radiometric dating (2)half-life Deposition of ?, E, DSuperposition Deposition of ?, E, D Intrusion F Superposition Cross Cutting Relations Deposition of ?, E, D Intrusion F Tilting Superposition Cross Cutting Relations Original Horizontality Deposition of ?, E, D Intrusion F Tilting Erosion Superposition Cross Cutting Relations Original Horizontality Unconformity Deposition of ?, E, D Intrusion F Tilting Erosion Deposition of C, B, A Superposition Cross Cutting Relations Original Horizontality Unconformity Superposition Deposition of ?, E, D Intrusion F Tilting Erosion Deposition of C, B, A Intrusion of G Superposition Cross Cutting Relations Original Horizontality Unconformity Superposition Cross Cutting Relations Deposition of E,G,L,CSuperposition Deposition of E,G,L,C Fault H Superposition Cross Cutting Relations Deposition of E,G,L,C Fault H Tilting Superposition Cross Cutting Relations Original Horizontality Deposition of E,G,L,C Fault H Tilting Erosion Superposition Cross Cutting Relations Original Horizontality Unconformity Deposition of E,G,L,C Fault H Tilting Erosion Deposition of M,D,J Superposition Cross Cutting Relations Original Horizontality Unconformity Superposition Deposition of E,G,L,C Fault H Tilting Erosion Deposition of M,D,J Intrusion of A Superposition Cross Cutting Relations Original Horizontality Unconformity Superposition Cross Cutting Relations Deposition of E,G,L,C Fault H Tilting Erosion Deposition of M,D,J Intrusion of A Erosion Superposition Cross Cutting Relations Original Horizontality Unconformity Superposition Cross Cutting Relations Unconformity Deposition of E,G,L,C Fault H Tilting Erosion Deposition of M,D,J Intrusion of A Erosion Deposition of N,K,B Superposition Cross Cutting Relations Original Horizontality Unconformity Superposition Cross Cutting Relations Unconformity Superposition Deposition of E,G,L,C Fault H Tilting Erosion Deposition of M,D,J Intrusion of A Erosion Deposition of N,K,B Tilting Superposition Cross Cutting Relations Original Horizontality Unconformity Superposition Cross Cutting Relations Unconformity Superposition Original Horizontality Deposition of E,G,L,C Fault H Tilting Erosion Deposition of M,D,J Intrusion of A Erosion Deposition of N,K,B Tilting Erosion Superposition Cross Cutting Relations Original Horizontality Unconformity Superposition Cross Cutting Relations Unconformity Superposition Original Horizontality Unconformity Deposition of E,G,L,C Fault H Tilting Erosion Deposition of M,D,J Intrusion of A Erosion Deposition of N,K,B Tilting Erosion Deposition of F Superposition Cross Cutting Relations Original Horizontality Unconformity Superposition Cross Cutting Relations Unconformity Superposition Original Horizontality Unconformity Superposition Deposition of E,G,L,C Fault H Tilting Erosion Deposition of M,D,J Intrusion of A Erosion Deposition of N,K,B Tilting Erosion Deposition of F Erosion Superposition Cross Cutting Relations Original Horizontality Unconformity Superposition Cross Cutting Relations Unconformity Superposition Original Horizontality Unconformity Superposition Unconformity Deposition of A, B, C, D, E, F, GSuperposition Deposition of A, B, C, D, E, F, G Tilting of these strata; H (a fault which cuts across the strata) Superposition Original Horizontality Deposition of A, B, C, D, E, F, G Tilting of these strata; H (a fault which cuts across the strata) Erosion I Superposition Original Horizontality Unconformity Deposition of A, B, C, D, E, F, G Tilting of these strata; H (a fault which cuts across the strata) Erosion I Deposition of J, K, and L Superposition Original Horizontality Unconformity Superposition Deposition of A, B, C, D, E, F, G Tilting of these strata; H (a fault which cuts across the strata) Erosion I Deposition of J, K, and L M (an igneous intrusion which cross cuts all older features) Superposition Original Horizontality Unconformity Superposition Cross Cutting Relations Deposition of A, B, C, D, E, F, G Tilting of these strata; H (a fault which cuts across the strata) Erosion I Deposition of J, K, and L M (an igneous intrusion which cross cuts all older features) Erosion N Superposition Original Horizontality Unconformity Superposition Cross Cutting Relations Unconformity Deposition of A, B, C, D, E, F, G Tilting of these strata; H (a fault which cuts across the strata) Erosion I Deposition of J, K, and L M (an igneous intrusion which cross cuts all older features) Erosion N Deposition of P and Q Superposition Original Horizontality Unconformity Superposition Cross Cutting Relations Unconformity Superposition Deposition of A, B, C, D, E, F, G Tilting of these strata; H (a fault which cuts across the strata) Erosion I Deposition of J, K, and L M (an igneous intrusion which cross cuts all older features) Erosion N Deposition of P and Q Both R (an igneous intrusion) and S (a lava flow) must come after Q but it is impossible to say whether R came before or after S since they do not cross cut Superposition Original Horizontality Unconformity Superposition Cross Cutting Relations Unconformity Superposition Cross Cutting Relations Deposition of A, B, C, D, E, F, G Tilting of these strata; H (a fault which cuts across the strata) Erosion I Deposition of J, K, and L M (an igneous intrusion which cross cuts all older features) Erosion N Deposition of P and Q Both R (an igneous intrusion) and S (a lava flow) must come after Q but it is impossible to say whether R came before or after S since they do not cross cut Deposition of T Superposition Original Horizontality Unconformity Superposition Cross Cutting Relations Unconformity Superposition Cross Cutting Relations Superposition Do A, B, C in lab manual. Skip Parts D and E Do Fossil age dating exercise at front of class as graded assignment.