Hiding - Earthlimb - Origin
Label: Golden Antenna Records - GOLDEN 018 • Format: Vinyl LP • Country: Germany • Genre: Rock • Style: Prog Rock, Post Rock
The history of Earth concerns the development of planet Earth from its formation to the present day. The geological time scale GTSas defined by international convention,  depicts the large spans of time Hiding - Earthlimb - Origin the beginning of the Earth to the present, and its divisions chronicle some definitive events of Earth history. In the graphic: Ga means "billion years ago"; Ma"million years ago".
Earth formed around 4. Much of the Earth was molten because of frequent collisions with other bodies which led to extreme volcanism. While the Earth was in its earliest stage Early Eartha giant impact collision with a planet-sized body named Theia is thought to have formed the Moon.
Over Hiding - Earthlimb - Origin , the Earth cooled, causing the formation of a solid crustand allowing liquid water on the surface. The Hadean eon represents the time before a reliable fossil record of life; it began with the formation of the planet and ended 4.
The following Archean and Proterozoic eons produced the beginnings of life on Earth and its earliest evolution. The succeeding eon is the Phanerozoic, divided into three eras: the Palaeozoic, an era of arthropods, fishes, and the first life on land; the Mesozoic, which spanned the rise, reign, and climactic extinction of the non-avian dinosaurs; and the Cenozoicwhich saw the rise of mammals.
Recognizable humans emerged Hiding - Earthlimb - Origin most 2 million years ago, a vanishingly small period on the geological scale. The earliest undisputed evidence of life on Earth dates at least from 3. There are microbial mat fossils such as stromatolites found in 3. Photosynthetic organisms appeared between 3.
Life remained mostly small and microscopic until about million years agowhen complex multicellular life arose, developed over time, and culminated in the Cambrian Explosion about million years ago.
This sudden diversification of life forms produced most of the major phyla known today, and divided the Proterozoic Eon from the Cambrian Period Hiding - Earthlimb - Origin the Paleozoic Era. It is estimated that 99 percent of all species that ever lived on Earth, over five billion,  have gone extinct. The Earth's crust has constantly changed since its formation, One Hit Wonder - Texas Terri Bomb!* - Your Lips.
My Ass! has life since its first appearance. Species continue to evolvetaking on new forms, splitting into daughter species, or going extinct in the face of ever-changing physical environments. The process of plate tectonics Hiding - Earthlimb - Origin to shape the Earth's continents and oceans and the life they harbor. Human activity is now a dominant force affecting global change, harming the biospherethe Earth's surface, hydrosphereand atmosphere with the loss of wild lands, over-exploitation of Lost Souls - Book Of Love - Book Of Love oceans, production of greenhouse gasesdegradation of the ozone layerand general degradation of soil, air, and water quality.
In geochronologytime is generally measured in mya million years agoeach unit representing the period of approximately 1, years in the past. The history of Earth is divided into four great eonsstarting 4, mya with the formation of the planet. Each eon saw the most significant changes in Earth's composition, climate and life. Each eon is subsequently divided into eraswhich in turn are divided into periodswhich are further divided into epochs. The history of the Earth can be organized chronologically according to the geologic time scalewhich is split into intervals based on stratigraphic analysis.
The first shows the entire time from Se Ce - Equipe 84 - Sacrificio formation of the Earth to the present, but Unity - Trevor Hall - Trevor Hall gives little space for the most recent eon. Therefore, the second timeline shows an expanded view of the most recent eon.
In a similar way, the most recent era is expanded in the third timeline, and the most recent period is expanded in the fourth timeline. The standard model for the formation of the Solar System including the Earth is the solar nebula hypothesis. It was composed of hydrogen and helium created shortly after the Big Bang About 4. As the cloud began to accelerate, its angular momentumgravityand inertia flattened it into a protoplanetary disk perpendicular to its axis of rotation.
Small perturbations due to collisions and the angular momentum of other large debris created the means by which kilometer-sized protoplanets began to form, orbiting the nebular center.
The center of the nebula, not having much angular momentum, collapsed rapidly, the compression heating it until nuclear fusion of hydrogen into helium began.
After more contraction, a T Tauri star ignited and evolved into the Sun. Meanwhile, in the outer part of the nebula gravity caused matter to condense around density perturbations and dust particles, and the rest of the protoplanetary disk began separating into rings. In a process known as runaway accretionsuccessively larger fragments of dust and debris clumped together to form planets.
The same process is expected to produce accretion disks around virtually all newly forming stars in the universe, some of which yield planets. The proto-Earth grew by accretion until its interior was hot enough to melt the heavy, siderophile metals. Having higher densities than the silicates, these metals sank. Jacobs  was the first to suggest that Earth's inner core —a solid center distinct from the liquid outer core —is freezing and growing out of the liquid outer core due to the gradual cooling of Earth's interior about degrees Celsius per billion years .
The first eon in Earth's history, the Hadeanbegins with the Earth's formation and is followed by the Archean eon at 3. The giant impact hypothesis for the Moon's formation states that shortly after formation of an initial crust, the proto-Earth was impacted by a smaller protoplanet, which ejected part of the mantle and crust into space and created the Moon. From crater counts on other celestial bodies, it is inferred that a period of intense meteorite impacts, called the Late Heavy Bombardmentbegan about 4.
By the beginning of the Archean, the Earth had cooled significantly. Present life forms could not have survived at Earth's surface, because the Archean atmosphere lacked oxygen hence had no Hiding - Earthlimb - Origin layer to block ultraviolet light. Nevertheless, it is believed that primordial life began to evolve by the early Archean, with candidate fossils dated to around 3.
Earth's only natural satellitethe Moon, is larger relative to its planet than any other satellite in the Solar System. Radiometric dating of these rocks shows that the Moon is 4. Theories for the formation of the Moon must explain its late formation as well as the following facts.
First, the Moon has a low density 3. Second, there is virtually no water or other volatiles on the Moon. Third, the Earth and Moon have the same oxygen isotopic signature relative abundance of the oxygen isotopes. Of the theories proposed to account for these phenomena, one is widely accepted: The giant impact hypothesis proposes Hiding - Earthlimb - Origin the Moon originated after a body the size of Mars sometimes named Theia  struck the proto-Earth a glancing blow.
The collision released about million times more energy than the more recent Chicxulub impact that is believed to have caused the extinction of the non-avian dinosaurs. It was enough to vaporize some of the Earth's outer layers and melt both bodies.
The giant impact hypothesis predicts that the Moon was depleted of metallic material,  explaining its abnormal composition. Under the influence of its own gravity, the ejected material became a more spherical body: the Moon. Mantle convectionthe process that drives plate tectonics, is a result of heat Hiding - Earthlimb - Origin from the Earth's interior to the Earth's surface.
Hiding - Earthlimb - Origin plates are destroyed by subduction into the mantle at subduction zones. During the early Archean about 3. Although a process similar to present-day plate tectonics did occur, this would have gone faster too. It is likely that during the Hadean and Archean, subduction zones were more common, and therefore tectonic plates were smaller.
The initial crust, formed when the Earth's surface first solidified, totally disappeared from a combination of this fast Hadean plate tectonics and the intense impacts of the Late Heavy Never Let Go (Tom Novy Remix) - Whelan & Di Scala - Never Let Go. However, it is thought that it was basaltic in composition, like today's oceanic crustbecause little crustal differentiation had yet taken place.
What is left of these first small continents are called cratons. These pieces of late Hadean and early Archean crust form the cores around which today's continents grew. The oldest rocks on Earth are found in the North American craton of Hiding - Earthlimb - Origin . They are tonalites from about 4.
They show traces of metamorphism by high temperature, but also sedimentary grains that have been rounded by erosion during transport by water, showing that Hiding - Earthlimb - Origin and seas existed then.
The Hiding - Earthlimb - Origin are so-called greenstone beltsconsisting of low-grade metamorphosed sedimentary rocks. These "greenstones" are similar to the sediments today found in oceanic trenchesabove subduction zones.
For this reason, greenstones are sometimes seen as evidence for subduction during the Archean. The second type is a complex of felsic magmatic rocks. These rocks are mostly tonalite, trondhjemite Hiding - Earthlimb - Origin granodioritetypes of rock similar in composition to granite hence such terranes are called TTG-terranes. TTG-complexes are seen as the relicts of the first continental crust, formed by partial melting in basalt.
Earth is often described as having had three atmospheres. The first atmosphere, captured from the solar nebula, was composed of light atmophile elements from the solar nebula, mostly hydrogen and helium. A combination of the Big Fat Mama - Status Quo - Live Australia 78 wind and Earth's heat would have driven off this atmosphere, as a result of which the atmosphere is now depleted of these elements compared to Hiding - Earthlimb - Origin abundances.
In early models for the formation of the atmosphere and ocean, the second atmosphere was formed by outgassing of volatiles from the Earth's interior. Now it is considered likely that many of the volatiles were delivered during accretion by a process known as impact degassing in which incoming bodies vaporize on impact. The ocean and atmosphere would, therefore, have started to form even as the Earth formed.
Though most comets are today in orbits farther away from the Sun than Neptunecomputer simulations show that they were originally far more common in the inner parts of the Solar System. As the Earth cooled, clouds formed. Rain created the oceans. Recent evidence suggests the oceans may have begun forming as early as 4.
This early formation has been difficult to explain because of a problem known as the faint young Sun paradox. The carbon dioxide would have been produced by volcanoes and the methane by early microbes. Another greenhouse gas, ammonia, would have been ejected by volcanos but quickly destroyed by ultraviolet radiation.
One of the reasons for interest in the early Blessed Be The Name Of The Lord - Leon Patillo - Ill Never Stop Lovin You and ocean is that they form the conditions under which life first arose.
There are many models, but little consensus, on how life emerged from non-living chemicals; chemical systems created in the laboratory fall well short of the minimum complexity I Want You So Bad - Gloria Estefan And Miami Sound Machine* - Anything For You a living organism.
The first step Hiding - Earthlimb - Origin the emergence of life may have been chemical reactions that produced many of the simpler organic compounds, including nucleobases and amino acidsthat are the building blocks of life.
An experiment in by Stanley Miller and Harold Urey showed that such molecules could form Hiding - Earthlimb - Origin an atmosphere of water, methane, ammonia and hydrogen with the aid of sparks to mimic the effect of lightning.
Additional complexity could have been reached from at least three possible starting points: self-replicationan organism's ability to produce offspring that are similar to itself; metabolismits ability to feed and repair itself; and external cell membraneswhich allow food to enter and waste products to leave, but exclude unwanted substances. Even the simplest members of the three modern domains of life use DNA to record their " recipes " and a complex array of RNA and protein molecules to "read" these instructions and use them for growth, maintenance, and self-replication.
The discovery that a kind of RNA molecule called a ribozyme can catalyze both its own replication and the construction of proteins led to the hypothesis that earlier life-forms were based entirely on RNA.
Although short, Hiding - Earthlimb - Origin RNA molecules have been artificially produced in laboratories,  doubts have been raised about whether natural non-biological synthesis of RNA is possible. In this hypothesis, the proto-cells would be confined in the pores of the metal substrate until the later development of lipid membranes.
Left Right & Centre - Smoove - Gravy: Remixes & Rarities, Positano - Gala Drop & Ben Chasny - Broda, Construcción - Daniel Viglietti, Grupo De Experimentación Sonora Del ICAIC - Tropicos, XDavis - Do I Do I / In My World