A discovery by Danny VG in habitat Garden on 28.06.2021. Marasmius oreades (Marasmius oreades) is a species of fungus. Post your nature observations of Mushroom sightings in the NatureSpots App, too! #NatureSpots #Mushroom #Garden
A discovery by Danny VG in habitat Garden on 28.06.2021. Marasmius oreades (Marasmius oreades) is a species of fungus. Post your nature observations of Mushroom sightings in the NatureSpots App, too! #NatureSpots #Mushroom #Garden
A discovery by Danny VG in habitat Garden on 28.06.2021. Marasmius oreades (Marasmius oreades) is a species of fungus. Post your nature observations of Mushroom sightings in the NatureSpots App, too! #NatureSpots #Mushroom #Garden
A discovery by Danny VG in habitat Garden on 28.06.2021. Marasmius oreades (Marasmius oreades) is a species of fungus. Post your nature observations of Mushroom sightings in the NatureSpots App, too! #NatureSpots #Mushroom #Garden
A discovery by Verein AKUPARA in habitat Road or Transportation on 28.06.2021. of another species. Post your nature observations of Animal sightings in the NatureSpots App, too! #NatureSpots #Animal #RoadorTransportation
A discovery by Insectsvienna in habitat City and Urban on 28.06.2021. Rhaphigaster nebulosa (Rhaphigaster nebulosa) is a species of insect. Post your nature observations of Animal sightings in the NatureSpots App, too! #NatureSpots #Animal #CityandUrban
A volcano is a rupture in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface.
On Earth, volcanoes are most often found where tectonic plates are diverging or converging, and most are found underwater. For example, a mid-oceanic ridge, such as the Mid-Atlantic Ridge, has volcanoes caused by divergent tectonic plates whereas the Pacific Ring of Fire has volcanoes caused by convergent tectonic plates. Volcanoes can also form where there is stretching and thinning of the crust's plates, such as in the East African Rift and the Wells Gray-Clearwater volcanic field and Rio Grande Rift in North America. Volcanism away from plate boundaries has been postulated to arise from upwelling diapirs from the core–mantle boundary, 3,000 kilometers (1,900 mi) deep in the Earth. This results in hotspot volcanism, of which the Hawaiian hotspot is an example. Volcanoes are usually not created where two tectonic plates slide past one another.
Large eruptions can affect atmospheric temperature as ash and droplets of sulfuric acid obscure the Sun and cool the Earth's troposphere. Historically, large volcanic eruptions have been followed by volcanic winters which have caused catastrophic famines.
Source: Wikipedia contributors. "Volcano." Wikipedia, The Free Encyclopedia. Wikipedia, The Free Encyclopedia, 13 Jun. 2021. Web. 28 Jun. 2021.
Tar pits, sometimes referred to as asphalt pits, are large asphalt deposits. They form in the presence of oil, which is created when decayed organic matter is subjected to pressure underground. If this crude oil seeps upward via fractures, conduits, or porous sedimentary rock layers, it may pool up at the surface. The lighter components of the crude oil evaporate into the atmosphere, leaving behind a black, sticky asphalt. Tar pits are often excavated because they contain large fossil collections.
Tar pits form above oil reserves, and these deposits are often found in anticlinal traps. In fact, about 80 percent of petroleum found on Earth has been found in anticlinal traps. Anticlines are folds in stratigraphic layers in which each half of the fold dips away from the crest. Such structures are usually developed above thrust faults or in tectonic regions where the land is bending and folding. If the structure above the concave-down fold (arch) is a non-porous rock or aquitard, such as shale, it is considered an anticlinal trap. The figure in this section is a cartoon cross-section diagram that shows oil stuck in an anticlinal trap. If there is a fault or fracture in the overlying strata above the oil reserve, the oil may migrate to the surface. This is possible by capillary fringe and because oil is less dense than water.
Source: Wikipedia contributors. "Tar pit." Wikipedia, The Free Encyclopedia. Wikipedia, The Free Encyclopedia, 26 Jun. 2021. Web. 28 Jun. 2021.
"Alles ausgerissen(Baum ist übrigens auch tot)....." says OSWR in habitat Road or Transportation on 28.06.2021. Cirsium vulgare (Cirsium vulgare) is a species of plant. Post your nature observations of Plant sightings in the NatureSpots App, too! #NatureSpots #Plant #RoadorTransportation
A hydrothermal vent is a fissure on the seafloor from which geothermally heated water discharges. Hydrothermal vents are commonly found near volcanically active places, areas where tectonic plates are moving apart at spreading centers, ocean basins, and hotspots. Hydrothermal deposits are rocks and mineral ore deposits formed by the action of hydrothermal vents.
Hydrothermal vents exist because the earth is both geologically active and has large amounts of water on its surface and within its crust. Under the sea, hydrothermal vents may form features called black smokers or white smokers. Relative to the majority of the deep sea, the areas around submarine hydrothermal vents are biologically more productive, often hosting complex communities fueled by the chemicals dissolved in the vent fluids. Chemosynthetic bacteria and archaea form the base of the food chain, supporting diverse organisms, including giant tube worms, clams, limpets and shrimp. Active hydrothermal vents are thought to exist on Jupiter's moon Europa, and Saturn's moon Enceladus, and it is speculated that ancient hydrothermal vents once existed on Mars.
Hydrothermal vents in the deep ocean typically form along the mid-ocean ridges, such as the East Pacific Rise and the Mid-Atlantic Ridge. These are locations where two tectonic plates are diverging and new crust is being formed.
The water that issues from seafloor hydrothermal vents consists mostly of sea water drawn into the hydrothermal system close to the volcanic edifice through faults and porous sediments or volcanic strata, plus some magmatic water released by the upwelling magma. In terrestrial hydrothermal systems, the majority of water circulated within the fumarole and geyser systems is meteoric water plus ground water that has percolated down into the thermal system from the surface, but it also commonly contains some portion of metamorphic water, magmatic water, and sedimentary formational brine that is released by the magma. The proportion of each varies from location to location.
Source: Wikipedia contributors. "Hydrothermal vent." Wikipedia, The Free Encyclopedia. Wikipedia, The Free Encyclopedia, 25 Jun. 2021. Web. 28 Jun. 2021.
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