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TIMPUL GEOLOGIC Istoria geologica a Pamantului PLAN- GHID pe baza caruia se va realiza proiectul

TEMA 16 TIMPUL GEOLOGIC. TIMPUL GEOLOGIC Istoria geologica a Pamantului PLAN- GHID pe baza caruia se va realiza proiectul. http://doru.juravle.com/cursuri/resurse/cursuri_2010-2011/ggp/01.%20GEOLOGIE%20GENERALA%20-%20PREZENTARE%2001%20-%20Notiuni%20introductive.pdf http://palaeos.com/

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TIMPUL GEOLOGIC Istoria geologica a Pamantului PLAN- GHID pe baza caruia se va realiza proiectul

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  1. TEMA 16 TIMPUL GEOLOGIC TIMPUL GEOLOGIC Istoria geologica a PamantuluiPLAN- GHID pe baza caruia se va realiza proiectul • http://doru.juravle.com/cursuri/resurse/cursuri_2010-2011/ggp/01.%20GEOLOGIE%20GENERALA%20-%20PREZENTARE%2001%20-%20Notiuni%20introductive.pdf • http://palaeos.com/ • http://sci.waikato.ac.nz/evolution/EvolutionOfLife.shtml • http://www.pbs.org/wgbh/nova/link/hist_nf.html

  2. EVOLUTIA PALEOGEOGRAFICA A TERREI http://www.ruf.rice.edu/~leeman/aNR.htm l

  3. EVOLUTIA VIETII PE TERRA http://www.ruf.rice.edu/~leeman/aNR.html

  4. 1. GEOCRONOLOGIE • Geocronologia este o ramura a stratigrafie care se ocupa cu datarea (stabilirea vârstei) depozitelor geologice si ierarhizarea cronologica a acestora, rezultând unitai geocronologice (de timp), concretizate în unitai cronostratigrafice. • Datarea se poate face • relativ, aplicându-se corelarile pornind de la principiul superpoziei geometrice a stratelor si evoluiei organismelor biologice • în mod absolut, folosindu-se metode radiometrice. • Unitati geocronologice: EON, ERA, PERIOADA, EPOCA, VARSTA, CRON

  5. DATAREA PRIN METODE RADIOMETRICE • Vârste absolute

  6. TIMPUL GEOLOGIC

  7. Istoria geologica a Pamantului

  8. I EONUL PRECAMBRIAN • II. EONUL FANEROZOIC

  9. I. EONUL PRECAMBRIAN -CARACTERIZARE http://palaeos.com/timescale/precambrian.htm 1. ARHAIC (The Archean Eon :http://palaeos.com/ • http://palaeos.com/archean/index.html )

  10. 2. PROTEROZOIC- CARACTERIZARE http://palaeos.com/proterozoic/proterozoic.htmhttp://palaeos.com/proterozoic/proterozoic.htm • 1 Geografia Proterozoicului • http://palaeos.com/proterozoic/proterozoic.htm • 2 Viata in Proterozoic • http://palaeos.com/proterozoic/proterozoic.htm

  11. II. EONUL FANEROZOIC

  12. II EONUL FANEROZOIChttp://palaeos.com/timescale/phanerozoic.htm#PaleozoicErele: Paleozoic, Mezozoic, Neozoic • ERA PALEOZOIC -CARACTERIZARE • Geografia Paleozoicului (imagini, harti) • Viata in Paleozoic (desene) • Of the three main eras that make up the Phanerozoic, the Paleozoic is the longest and most diverse, spanning the period from very early multicellular life that only inhabited the oceans to quite advanced tetrapods* and reptiles and extensive forests on land. • Early Paleozoic: Age of InvertebratesCoelomate radiation (Cambrian explosion) - origin of major groups of organisms; nervous system, behavior patterns and simple consciousness (the nascent Noosphere); continents drift apart. • Middle Paleozoic: Age of FishTropical conditions.  Extinction of many "experimental" animal groups; diversification of surviving invertebrate groups, rise of vertebrates (fish).  Life moves on land (rhyniophytes, lycophytes, uniramous arthropods, proto-amphibians). • Late Paleozoic: Age of Tetrapods* and ReptilesIce age.  Coal forests of giant lycopsids, calamites, pteridophytes and ferns cover the tropical landmasses.  Southern landmass of Gondwanaland buried under glaciers; continents drift together.  Reptiles conquer the land

  13. ERA MEZOZOIC –CARACTERIZARE DESCRIERE imagini, harti • Geografia Mezozoicului • Viata in Mezozoic(desene) • The Mesozoic has been called the "age of reptiles", but "age of dinosaurs" would be more appropriate.   There is still controversy over whether dinosaurs really were stupid sluggish ectotherms ("reptiles") or active high-metabolism (endotherm) creatures more like birds.   Even if we define them as "reptiles" the age of reptiles as such begins in the Permian period of the Paleozoic era anyway. • Tropical (Greenhouse) Conditions.  Pangaea continues during the early Triassic; then landmasses begin to drift apart.  Shallow oceans cover much of the continents, breaking the land into large islands.   Mammals remain small, possibly nocturnal.  Most modern groups of organisms appear. Vertebrate animals (mammals, birds, theropod dinosaurs) develop larger brains then their earlier reptilian ancestors.

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