Rock Collection and ID Chart - 18 Rocks - Igneous, Metamorphic, Sedimentary - from DINOSAURS ROCK

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El Albani, Abderrazak; Bengtson, Stefan; Canfield, Donald E.; Bekker, Andrey; Macchiarelli, Roberto; Mazurier, Arnaud; Hammarlund, Emma U.; etal. (2010). "Large colonial organisms with coordinated growth in oxygenated environments 2.1 Gyr ago" (PDF). Nature. 466 (7302): 100–104. Bibcode: 2010Natur.466..100A. doi: 10.1038/nature09166. PMID 20596019. S2CID 4331375. [ permanent dead link] Gradstein, F. M.; Ogg, J. G. (2004). "A Geologic Time scale 2004 – Why, How and Where Next!" (PDF). Lethaia. 37 (2): 175–181. doi: 10.1080/00241160410006483. Archived from the original (PDF) on 17 April 2018 . Retrieved 30 November 2018.

Methanian Period/System ( 2780–2630 Ma) – named for the inferred predominance of methanotrophic prokaryotes [57] Do the textural boundaries between phyllite, schist, and gneiss correspond to mineralogical changes? If not, why do you suppose they are different? From the Greek words νέος ( néos) meaning 'new' or 'young', and ἀρχαῖος ( arkhaîos) meaning 'ancient'. An age is the smallest hierarchical geochronologic unit and is equivalent to a chronostratigraphic stage. [7] [12] There are 96 formal and five informal ages. [2] A shallow body of water separated from a larger body of water by barrier islands or reefs; very low energy; contains silt and clay. Example in Google Earth: East Matagorda Bay, Texas.A mineral is a naturally occurring substance with distinctive chemical and physical properties, composition and atomic structure. Relationships of unconformities – Geologic features representing periods of erosion or non-deposition, indicating non-continuous sediment deposition. Holmes, A. (1 January 1959). "A revised geological time-scale". Transactions of the Edinburgh Geological Society. 17 (3): 183–216. doi: 10.1144/transed.17.3.183. ISSN 0371-6260. S2CID 129166282. Start of Quaternary glaciations and unstable climate. [78] Rise of the Pleistocene megafauna and Homo habilis. Final assembly of Rodinia supercontinent occurs in early Tonian, with breakup beginning c. 800Ma. Sveconorwegian orogeny ends. Grenville Orogeny tapers off in North America. Lake Ruker / Nimrod Orogeny in Antarctica, 1,000±150Ma. Edmundian Orogeny (c. 920–850Ma), Gascoyne Complex, Western Australia. Deposition of Adelaide Superbasin and Centralian Superbasin begins on Australian continent. First hypothetical animals (from holozoans) and terrestrial algal mats. Many endosymbiotic events concerning red and green algae occur, transferring plastids to ochrophyta (e.g. diatoms, brown algae), dinoflagellates, cryptophyta, haptophyta, and euglenids (the events may have begun in the Mesoproterozoic) [90] while the first retarians (e.g. forams) also appear: eukaryotes diversify rapidly, including algal, eukaryovoric and biomineralised forms. Trace fossils of simple multi-celled eukaryotes.

Eemian interglacial, last glacial period, ending with Younger Dryas. Toba eruption. Pleistocene megafauna (including the last terror birds) extinction. Humans expand into Near Oceania and the Americas. Deconto, Robert M.; Pollard, David (2003). "Rapid Cenozoic glaciation of Antarctica induced by declining atmospheric CO2" (PDF). Nature. 421 (6920): 245–249. Bibcode: 2003Natur.421..245D. doi: 10.1038/nature01290. PMID 12529638. S2CID 4326971.

Zanclean flooding of the Mediterranean Basin. Cooling climate continues from the Miocene. First equines and elephantines. Ardipithecus in Africa. [80] Butcher, Andy (26 May 2004). "Re: Ediacaran". LISTSERV 16.0 - AUSTRALIAN-LINGUISTICS-L Archives. Archived from the original on 23 October 2007 . Retrieved 19 July 2011. a b c d e f g h i j k Fischer, Alfred G.; Garrison, Robert E. (2009). "The role of the Mediterranean region in the development of sedimentary geology: a historical overview". Sedimentology. 56 (1): 3–41. Bibcode: 2009Sedim..56....3F. doi: 10.1111/j.1365-3091.2008.01009.x. S2CID 128604255.