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the time scale is divided into four large periods of time - the precambrian, paleozoic era, mesozoic era, and cenozoic era. Geochronology in which the time order is based on superposition or fossil content rather than on an age expressed in years Explanation of relative chronology How scientists tell time with geology.

national parks preserve fossils from each of these time blocks. Study online flashcards and notes for Module 3 - GEOLOGIC TIME: CONCEPTS AND PRINCIPLES including Distinguish between relative dating and absolute dating . : Sequence of geologic events or rocks in rela Username:password:internet geolabstextbook resourcesonline student editionself-check quizzeschapter testswebquest projectsstandardized test practicescience bulletinsunit resourceschoose a unitunit 1unit 2unit 3unit 4unit 5unit 6unit 7unit 8chapter activitieschoose a chapterchapter 21chapter 22chapter 23chapter 24web linksstandardized test practicechapter testvocabulary eflashcardsproblem of the weeksection resourceschoose a sectionsection 1section 2section 3section 4self-check quizteacherteacher forumvocabulary puzzlemakerteaching todayresearchstudentinternet geolabstextbook resourcesonline student editionself-check quizzeschapter testswebquest projectsstandardized test practicescience bulletinsunit resourceschoose a unitunit 1unit 2unit 3unit 4unit 5unit 6unit 7unit 8chapter activitieschoose a chapterchapter 21chapter 22chapter 23chapter 24teacherproblem of the weekstudentweb linksstandardized test practicechapter testvocabulary eflashcardsproblem of the weeksection resourceschoose a sectionsection 1section 2section 3section 4studentself-check quizhome. a)an erosional surfaceb)a nonconformityc)a disconformityd)an angular unconformity5the __________ states that the processes that have been occurring today have been occurring since earth formed.a)principle of original horizontalityb)principle of uniformitarianismc)principle of superpositiond)principle of cross-cutting relationships6what geologic principle states that in an undisturbed rock sequence, the oldest rocks are on the bottom and the youngest are on the top? a)bb)cc)ad)none of the abovee-mail your resultsdate:my name:e-mail these results to:e-mail address:format:me:my teacher:other:searchsearch for:site preferences. a)uniformitarianismb)cross-cutting relationshipsc)original horizontalityd)superposition4if a horizontal devonian shale directly overlies a horizontal ordovician limestone, what is the surface between the strata called? geological dating synonyms, geological dating pronunciation, geological dating translation, English dictionary definition of geological dating. geological dating - use of chemical analysis to estimate the age of geological specimens dating chemical analysis, qualitative analysis - the act of... the web site is simple, especially at the begnining, yet allows you to visualize relationships among the main concepts you have been studying.

This aspect of werner's model was useful for explaining the origin of tilted sedimentary rocks.

Then were subsequently deformed (tilted and folded) by the forces of earth's internal heat engine.

unless these rocks have been overturned (there are ways to tell if this is so), it is obvious that the limestone is the oldest of the layers.