1. Which one of the contacts (surfaces) between lettered layers is a disconformity?

Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
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1. Which one of the contacts (surfaces) between lettered layers is a disconformity?

2. A system is the rock/sediment deposited during a period of time. What system(s) of rock is/ are completely missing at the disconformity?

Absolute
Ages (in
millions
of years)
Relative Ages
Ranges (black vertical lines) of Index Fossils Pictured Below
Eras
Periods
0.2-
Quaternary
2.6–
Homo sapiens
Neogene
23
34-
Paleogene
Baculites
Fagopsis
trees
65
76–
Exogyra
Cretaceous
Period
82-
145
Jurassic
Period
Dinosaurs
200
210-
Mammals
Inoceramus
Triassic
Period
225–
2555-
Neuropteris
ferns
Permian
Period
Sharks
280–
-299
Reptiles
Pennsylvanian
Period
300-
310-
-318
Mississippian
Period
Chonetes
359
365-
Amphibians
Mucrospirifer
Devonian
Period
397-
-416
425-
Phacops
Silurian
Period
Strophomena
-444
Ordovician
Period
450-
470-
Flexicalymene
Platystrophia
488
500-
Cambrian
Period
515–
520-
Elrathia
Olenellus
543
Precambrian
4550
PALEOZOIC
ERA
MESOZOIC
ERA
ERA
DIOZON3)
Transcribed Image Text:Absolute Ages (in millions of years) Relative Ages Ranges (black vertical lines) of Index Fossils Pictured Below Eras Periods 0.2- Quaternary 2.6– Homo sapiens Neogene 23 34- Paleogene Baculites Fagopsis trees 65 76– Exogyra Cretaceous Period 82- 145 Jurassic Period Dinosaurs 200 210- Mammals Inoceramus Triassic Period 225– 2555- Neuropteris ferns Permian Period Sharks 280– -299 Reptiles Pennsylvanian Period 300- 310- -318 Mississippian Period Chonetes 359 365- Amphibians Mucrospirifer Devonian Period 397- -416 425- Phacops Silurian Period Strophomena -444 Ordovician Period 450- 470- Flexicalymene Platystrophia 488 500- Cambrian Period 515– 520- Elrathia Olenellus 543 Precambrian 4550 PALEOZOIC ERA MESOZOIC ERA ERA DIOZON3)
D
в
A
Transcribed Image Text:D в A
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