Animation from Bigbang, Planet formation , Evolution and Man,. A 13.7B yr old story

[fritzd]

---

ur welcom mr . fritz , wat do u think of the moon thing .

it could have been a twin planet of earth if they didnt collide?

yeah... sir rod is right. They(astrophysicists) did a backward simulation by taking into account all celestial bodies on our solar system. And that is indeed what they found, mars sized object colliding with the earth. I will try to search for that article. I read it a long long time ago. I'll post it if I can find it. hehehe

[rodsky]

uh...question:

in the said video, how come the earth "swallowed" the other "twin" planet like it only smashed 1/4 of it's body in contribution w/ the formation of the moon and other half of it end up w/ the earth itself? murag gelamoy sa earth pero ang earth wa mapahak??

The reason why you have a hard time picturing what happened is because you think of a "solid" earth (puros gahi nga bato). Remember, the earth that time was almost completely molten inside, with only a thin crust float on top of the molten mass. Using this scenario, it's easier to picture why "gelamoy" sa earth ang impactor. Have you seen a drop of water in ultra slow motion?



That drop is the result of the impact of water on a liquid surface, producing the spherical globule...piece this together with the giant impact theory and voila...

-RODION

[moy1moy1]

The reason why you have a hard time picturing what happened is because you think of a "solid" earth (puros gahi nga bato). Remember, the earth that time was almost completely molten inside, with only a thin crust float on top of the molten mass. Using this scenario, it's easier to picture why "gelamoy" sa earth ang impactor. Have you seen a drop of water in ultra slow motion?



That drop is the result of the impact of water on a liquid surface, producing the spherical globule...piece this together with the giant impact theory and voila...

-RODION

Ooh~ getz kona, hehe tnx!! so that explains everything...

[nirdle_phogi]

OT: check ninyo ni. scale of the Universe.. hehe

The Scale of the Universe

[cromagnon]

"The earth is the geologist's vast puzzle box."

suggested Louis Agassiz.

Record The fossils from the walls of the Grand Canyon account for 500 million years of adaptive radiation of life from the sea, to the air and onto dry land. Large sections of the fossil record are missing from the canyon's rock walls. These fossils in the rocks reveal a startling puzzle from different ages of the land.

These canyon walls record what the displays at the American Museum of Natural History, or the Oxford University Museum of Natural History interpret for all of us who sojourn on earth for but a brief duration.

The great divisions in the "rocks of ages" record both subtle and enormous changes based on the shifting dominance of marine,to vegetation and eventually terrestrial fossils. These divisions in the fossil records are the Paleozoic, the Mesozoic, and the Cenozoic eras in the geological past.

• The starred lines ( ************** ) below refer to five world-wide, mass extinctions or times during which there occurred a global ecosystem collapse. These prolonged extinction events shaped the kinds of dominant species and their descendants on Earth.
• The species we see today --contributing to the biological diversity, biogeography and ecological pieces of this puzzle-- are experiencing another worldwide extinction; in part induced by the spread of human settlements, industry and agriculture.

The Geological Record
by Joseph Siry

GEOLOGICAL CHRONOLOGY OF PLANET EARTH
YEARS, BP: ------------ SEA -------- CLIMATE -------- WILDERNESS
25--20 billion,

• BIG BANG - or - Immense Conception ?

13.7 billion,

The origins of the universe and the simplest atoms: H & HE

5 billion,

• origin of the Solar System

Eons, Eras, and Periods, are shown in bold:

HADEAN
4.6-- 3.8 billion, formation of the planet Earth.

• PRIMAL ATMOSPHERE; nitrogen, methane, ammonia, carbon and sulfur dioxides, no free oxygen.

4.3 billion,

• scattered ponds coalescinginto larger water bodies.

4.1 billion, Oceans formed worldwide ARCHEON
4 billion,

• Oceans fully developed in physical size and chemical composition

3.96 billion, oldest known rocks on Earth 3 billion,

• RNA world
  AMINO ACIDS AND PROTEIN MOLECULES are precursors of cells

3.8 billion,

• Greenland Shield's oldest rockssuggest simple bacterial, moneran organisms

3.2 billion, evidence for the origins of life bacterial forms of life proto-cells fossilized PROCARYOTIC MONERAN CELLS spread in oceans

PRO/PALEOPHYTIC
3 billion, Literally: older plants; figuratively called the dawning of the earliest plants. Plants, algae and some bacteria are those essential creatures with the capacity to use solar radiation in order to nourish themselves, maintain body parts and function to reproduce. Their waste product --oxygen-- eventually transformed the Earth's older atmosphere into the present oxygen rich air.

• Aerobic PROCARYOTIC CELLS

2.5 billion, Cyanobacteria are dominant reef builders oldest Canadian Shield rocks: SLAVE PROVINCE 2.4 billion, Rift valley forms in Slave/bear provinces
2.3 billion, Stromatolite Reefs form of blue-green bacterial mats
2.2 billion, Oldest Glacial evidence
2.1 Slave/ Bear continent rests over mantle plumes, creating volcanic activity.
2.1 -- 1.8 billion,

• WOPMAY OROGENY (mountain building) tears the Bear and Slave continent apart opening a 2,500 km wide ocean basin due to continental drift.

2 billion,

• oxygen in the atmosphere and BLUE GREEN BACTERIAL reefs flourish in the Great Slave Lake.

1.9 billion,

• EUKARYOTIC SYMBIOSESOF PROKARYOTIC CELLS

1.8 billion,

• Reversal of the slave and bear oceanic rift; Slave continent is rammed into the Churchill province along McDonald fault (Canada) is evidence of plate tectonics; the movement of --otherwise apparently stationary pieces of-- the earth's crust by the motion of hot magmas (or lava) in the mantle beneath the planet's rocky surface.

1.7 billion,

• Oldest Grand Canyon formations

1 billion,

SEXUAL REPRODUCTION MANIFEST PHANEROZOIC

680 million,

• free oxygen at 1% of the current ambient level in the atmosphere, due to the photosynthesis ability of blue-green bacteria.

680 -- 230 million,
oxygen grows to 3% to 10% of the ambient level in the atmosphere, Ediacarian limestone laid down in a shallow, warm seas. Such marine seas are where calcium in the water reacts with carbon to form a milky dispersion called calcium carbonate which is heavy enough to settle at the bottom of a watery pool if the winds do not stir up the bottom sediments.
680 million,

• oldest animal fossils;
  AVALONIAN OROGENY ends in the creation of a micro-continent called Avalonia (right) as a series of terrain (an island arc) that forms the rocks now found in the mountains of Great Britain, Newfoundland, Canada and eastern New York state and New England, suggesting that these now separate mountain chains were once a single chain like the Andes.
  "Rhode Island and the New England states were not the only land masses to emerge from the Avalonian arc. In the sketch above, J marks the approximate location of Jamestown, Rhode Island. EW indicates the portion of Avalonia that became southern Ireland, England and Wales, Ib shows Iberia (Spain and Portugal) and Ar Armorica and Bohemia. A portion of the arc is now part of Morocco. Future parts of Nova Scotia, New Brunswick and Newfoundland, as well as most of New England are offshore from Florida (labeled F on the map). The portion of the arc that became part of the Carolinas is to the right of Jamestown, offshore of what is now Venezuela, in South America."

Precambrian 670 million, jellyfish fossil, blue-green bacterial reef forming organisms flourish in warm shallow seas, called stromatolites.

600 million,

• Urals rise from the collision of Europe with Siberia,TRILOBITES numerous; FLORIDA an island arc of volcanoes.

570 million,

• Proto-Atlantic, IAPETUS SEA begins to shrink AVALONIAN OROGENY terrain collides with N. A. in BOSTON and New England.

550 million, chitin shelled creatures emerge (same exoskeleton as insects).

[cromagnon]

Paleozoic Era Cambrian
545 million, extensive oceans cover North America (N. A.) warm seas.
An explosion of shallow marine organisms with greater varieties of body plans (invertebrates) than is now extant..
540 million, lampreys.
Marine arthropod called Anomalocaris (at left and below from Burgess shale fossils) is a seaside predator of some immense size and speculated ferocity. It fed in waters where salt water algae, sponges, brachiopods, cnidarians, mollusks, trilobites, crustaceans, starfish, and stromatolite reef building species spread in the warm tropical seas.
This predator was a large creature feeding on bottom dwelling denizens, or animals classified by where they live and are called called benthic fauna. Anomalocaris was a free swimming animal, unlike the corals and anemones.

A far greater diversity of body forms existed in this period, than now, since the evidence in the Burgess Shale (Cananda) formations is extensive:
530 m. y. a. : The BURGESS SHALE FORMATION:
"By recognizing so many unique anatomies in the Burgess, and by showing that familiar groups were then experimenting with designs so far beyond the modern range, they have inverted the" way we think about the diversity of life on earth. "The sweep of anatomical variety reached a maximum right after the initial diversification of multicellular animal. The later history of life proceeded by elimination, not expansion. The current earth may hold more species than ever before, but most are iterations on a few basic body plans."
"Compared with the Burgess seas, today's oceans contain many more species based upon many fewer anatomical plans."
"The maximum range of anatomical possibilities arises with the first rush of diversification. Later history is a tale of restriction, as most of the early experiments succumb and life settles down to generating endless variants upon a few surviving models. "

Stephen J. Gould, Wonderful Life, p. 47.

520 Avalonian continent finally broken up.
510 million, Closing of the ancient Iapetus Sea (the proto-atlantic Ocean)
extensive & massive extinctions of sea-life; worldwide ecological collapse.
********************************************1****************************************** Ordovician over half of North America covered by ocean water.
505 million, early shelled (calcium carbonate) organisms such as Anomalocaris and fishes.
500 million, early mountain building (Orogeny) in Eastern N. A.

• Cephalopods like the chambered nautilus' ancestors called ammonites are varied and dominant. The earliest vertebrates are extensively preserved in limestone dominant rock (slate and marble sources). Huge deposits of once living creatures form oil and gas deposits associated with the rocks of the Cincinnati Arch; Tapeats Sandstone and Bright Angel formations of Grand Canyon.
  

Silurian first land arthropods and land plants. 438 million,

• early vascular plants, ancestral mosses and liverworts, northern APPALACHIANS formed from the collision of two continents: Laurentia and Baltica during the TACONIC OROGENY.
  

Devonian 408 million,

Coelacanths and other jawless fishes emerged, the earliest evergreen forests began to dominate the land. And in the seas there were sharks. The planet's land masses were divided into Gondwanaland in the south and Laurasia in the north divided by the shallow circum-equatorial water body called the proto-Thethys Sea.

• Life in the Devonian sea was quite diverse including giant eurypterids or 'sea scorpions' pursued early jawed fishes, including acanthodians (sometimes called 'spiny sharks', though not related to true sharks) and shield-headed fishes called placoderms (which probably shared a common ancestor with the sharks). Rugose and halysite corals built great reefs, providing food and living spaces for many different kinds of creature. The sea floor supported a rich variety of crinoid 'sea lilies', stalked clam-like animals called brachiopods, bizarre colonial critters known as graptolites, and early versions of mollusks - such as chitons, tusk shells, and straight-shelled cephalopods related to modern-day nautiloids. The first plants - small, leafy pioneers known as rhinophytes - colonized the land, followed shortly thereafter by joint-limbed creatures such as scorpions, centipedes, and millipedes.
  
  

400 million,

• fishes dominate seas; early amphibians; vascular plants: club mosses, horsetails, Gymnosperms, seed ferns and other green plants.

375 million,

• Mangrove swamps, fish on mud flats, ACADIAN OROGENY formation of a Appalachian/ Pennine/ Scandinavian single Mt. chain stretching along the equator.

Global climatic changes lead eventually to a "great period of extinctions."