 | This article does not cite any sources .(April 2019) (Learn how and when to remove this template message) |
The Nagura Formation is a palaeontological formation located in Japan. It dates to the Middle Miocene period.
| | This article does not cite any sources .(April 2019) (Learn how and when to remove this template message) |
The Nagura Formation is a palaeontological formation located in Japan. It dates to the Middle Miocene period.
 | This Saitama Prefecture location article is a stub. You can help Wikipedia by expanding it. |
 | This article about a specific stratigraphic formation in Japan is a stub. You can help Wikipedia by expanding it. |
Banded iron formations are distinctive units of sedimentary rock that are almost always of Precambrian age.
A calcium–aluminium-rich inclusion or Ca–Al-rich inclusion (CAI) is a submillimeter- to centimeter-sized light-colored calcium- and aluminium-rich inclusion found in carbonaceous chondrite meteorites. They are probably the oldest substances in the Solar System. The oldest age was measured in an inclusion of the CV3 carbonaceous chondrite Northwest Africa (NWA) 2364 and was dated at 4568.22 ± 0.17 Mya.
A gully is a landform created by running water, eroding sharply into soil, typically on a hillside. Gullies resemble large ditches or small valleys, but are metres to tens of metres in depth and width. When the gully formation is in process, the water flow rate can be substantial, causing a significant deep cutting action into soil.
The exposed geology of the Capitol Reef area presents a record of mostly Mesozoic-aged sedimentation in an area of North America in and around Capitol Reef National Park, on the Colorado Plateau in southeastern Utah.
In organic chemistry, an electrophilic addition reaction is an addition reaction where, in a chemical compound, a π bond is broken and two new σ bonds are formed. The substrate of an electrophilic addition reaction must have a double bond or triple bond.
Cummingtonite ( KUHM-meeng-ton-nyte) is a metamorphic amphibole with the chemical composition (Mg,Fe2+)2(Mg,Fe2+)5Si8O22(OH)2, magnesium iron silicate hydroxide.
Serendipaceratops is a dubious genus of herbivorous ornithischian dinosaur from the early Cretaceous Period of Australia.
A brightest cluster galaxy (BCG) is defined as the brightest galaxy in a cluster of galaxies. BCGs include the most massive galaxies in the universe. They are generally elliptical galaxies which lie close to the geometric and kinematical center of their host galaxy cluster, hence at the bottom of the cluster potential well. They are also generally coincident with the peak of the cluster X-ray emission.
The San Juan Basin is a geologic structural basin located near the Four Corners region of the Southwestern United States. The basin cover 7,500 square miles and resides in northwestern New Mexico, southwestern Colorado, and parts of Utah and Arizona. Specifically, the basin occupies space in the San Juan, Rio Arriba, Sandoval, and McKinley counties in New Mexico, and La Plata and Archuleta counties in Colorado. The basin extends roughly 100 miles (160 km) N-S and 90 miles (140 km) E-W.
Batrachosuchus is a genus of temnospondyl amphibian that existed from the Early to Middle Triassic of Southern Africa and the Blina Shale of Australia.
In physiology, isobaric counterdiffusion (ICD) is the diffusion of different gases into and out of tissues while under a constant ambient pressure, after a change of gas composition, and the physiological effects of this phenomenon. The term inert gas counterdiffusion is sometimes used as a synonym, but can also be applied to situations where the ambient pressure changes. It has relevance in mixed gas diving and anesthesiology
The Exshaw Formation is a stratigraphic unit in the Western Canada Sedimentary Basin. It takes the name from the hamlet of Exshaw, Alberta in the Canadian Rockies, and was first described from outcrops on the banks of Jura Creek north of Exshaw by P.S. Warren in 1937. The formation is of Late Devonian to Early Mississippian age as determined by conodont biostratigraphy, and it straddles the Devonian-Carboniferous boundary.
An iron planet is a type of planet that consists primarily of an iron-rich core with little or no mantle. Mercury is the largest celestial body of this type in the Solar System, but larger iron-rich exoplanets may exist.
The New Albany Shale is an organic-rich geologic formation of Devonian and Mississippian age in the Illinois Basin of the United States. It is a major source of hydrocarbons.
Galaxias Chaos is an area of broken landscape in the Cebrenia quadrangle of Mars, located at 34.1° N and 213.6° W. It is 234.0 km across and was named after an albedo feature name. Galaxias Chaos may be caused by sublimation of an ice-rich deposit.
An anemic galaxy is a type of spiral galaxy characterized by a low contrast between its spiral arms and its disk.
Chubutemys was an extinct genus of meiolaniform turtle. It lived during the Early Cretaceous of Argentina, around the Albian-Aptian border, within the Puesto La Paloma Member of the Cerro Barcino Formation. It is known from most of the skeleton and carapace, and part of the skull.
Mininco Formation is a geological formation composed of sediments that deposited during the Pliocene in central Chile. Near Angol the formation reaches thicknesses of up to 300 m. The upper strata of the formation contain tuff layers and coal beds that are rich in leaf fossils. Other fossils that have been found in the formation include fresh-water diatoms and bivalves.
Santa Juana Formation a sedimentary rock formation near Santa Juana in the lower course of Biobío River in south-central Chile. Lithologies range from conglomerate sandstone, arkosic sandstone, siltstone and mudstone. The sediments that consolidate into the rocks of the formation deposited in alluvial, fluvial, lacustrine and playa lake environment. Overall the formation is rich in plant fossils.