A Dictionary Of Geological Names

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Names of the Greeks - Wikipedia.

The Greeks (Greek: ???????) have been identified by many ethnonyms.The most common native ethnonym is Hellen (Ancient Greek: ?????), pl. Hellenes (???????); the name Greeks (Latin: Graeci) was used by the ancient Romans and gradually entered the European languages through its use in Latin. The mythological patriarch Hellen is the named progenitor of the Greek ....


Dictionary of Water Terms | U.S. Geological Survey.

Jun 15, 2018 . A geological formation or structure that stores and/or transmits water, such as to wells and springs. Use of the term is usually restricted to those water-bearing formations capable of yielding water in sufficient quantity to constitute a usable supply for people's uses..


Moissanite - Wikipedia.

Moissanite / ' m ?I s ? n aI t / is naturally occurring silicon carbide and its various crystalline polymorphs.It has the chemical formula SiC and is a rare mineral, discovered by the French chemist Henri Moissan in 1893. Silicon carbide is useful for commercial and industrial applications due to its hardness, optical properties and thermal conductivity.


Landsat Collection 2 Data Dictionary | U.S. Geological Survey.

Jul 21, 2021 . Acquisition Quality. Field Definition: Acquisition Quality is a value, expressed as a single digit number, based on (1) errors encountered during archive processing; and/or (2) visible artifacts in the data when manually inspected. Values: 9 = ....


Kure Atoll - Wikipedia.

The geological history of Kure is generally similar to Midway, but Kure lies close to what is called the Darwin Point, the latitude north of which the rate of natural reef subsidence and destruction surpasses the rate of reef growth. At approximately 30 million years old, it is the oldest in the Hawaiian Island chain. As Kure continues to be slowly carried along to the northwest by the ....


Neo Definition & Meaning | Dictionary.com.

NEO: 1. a combining form meaning "new," "recent," "revived," "modified," used in the formation of compound words: neo-Darwinism; Neolithic ....


Anthropocene Definition & Meaning - Merriam-Webster.

Feb 12, 2004 . Anthropocene: [noun] the period of time during which human activities have had an environmental impact on the Earth regarded as constituting a distinct geological age..


Geologic time scale - Wikipedia.

The geologic time scale, or geological time scale, (GTS) is a representation of time based on the rock record of Earth.It is a system of chronological dating that uses chronostratigraphy (the process of relating strata to time) and geochronology (scientific branch of geology that aims to determine the age of rocks). It is used primarily by Earth scientists (including geologists ....


Valley Definition & Meaning | Dictionary.com.

Valley definition, an elongated depression between uplands, hills, or mountains, especially one following the course of a stream. See more..


Europe - Wikipedia.

Europe is a landmass, which is either considered a continent in its own right or a subcontinent of Eurasia, located entirely in the Northern Hemisphere and mostly in the Eastern Hemisphereprising the westernmost peninsulas of Eurasia, it shares the continental landmass of Afro-Eurasia with both Asia and Africa.It is bordered by the Arctic Ocean to the ....


Geologic Time Scale - Major Divisions of Geologic Time Chart.

Therefore, Divisions of Geologic Time (fig. 1) is intended to be a dynamic resource that will be modified to include accepted changes of unit names and boundary age estimates. This fact sheet is a modification of USGS Fact Sheet 2007-3015 by the U.S. Geological Survey Geologic Names Committee (2007)..



Aug 08, 2022 . AK GeMS Data Dictionary -- a description of the Alaska geologic mapping schema. Alaska Division of Geological & Geophysical Surveys. AZGS Geomapmaker -- GitHub repository for an ArcGIS Pro ribbon tab/toolbar to help create GeMS-compliant data during the digitization process. Arizona State Geological Survey..


Gaia hypothesis - Wikipedia.

The Gaia hypothesis (/ ' g aI. ? /), also known as the Gaia theory, Gaia paradigm, or the Gaia principle, proposes that living organisms interact with their inorganic surroundings on Earth to form a synergistic and self-regulating, complex system that helps to maintain and perpetuate the conditions for life on the planet.. The hypothesis was formulated by the chemist James ....


Natural selection Definition & Meaning - Merriam-Webster.

Jun 01, 2022 . The meaning of NATURAL SELECTION is a natural process that results in the survival and reproductive success of individuals or groups best adjusted to their environment and that leads to the perpetuation of genetic qualities best suited to that particular environment..


Moon - Wikipedia.

These names - Luna, Cynthia and Selene - are reflected in technical terms for lunar orbits such as apolune, pericynthion and selenocentric. The astronomical symbol for the Moon is a crescent, , for example in M ? 'lunar mass' (also M L). Geological history Formation.


Data Dictionaries | U.S. Geological Survey.

What's in a Data Dictionary? Data dictionaries store and communicate metadata about data in a database, a system, or data used by applications. A useful introduction to data dictionaries is provided in this video. Data dictionary contents can vary but typically include some or all of the following: A listing of data objects (names and definitions).


River Thames - Wikipedia.

The River Thames (/ t e m z / TEMZ), known alternatively in parts as the River Isis, is a river that flows through southern England including London.At 215 miles (346 km), it is the longest river entirely in England and the second-longest in the United Kingdom, after the River Severn.. The river rises at Thames Head in Gloucestershire, and flows into the North Sea near Tilbury, Essex and ....


Crop Definition & Meaning - Merriam-Webster.

crop: [verb] to remove the upper or outer parts of. harvest. to cut off short : trim..


Granite: Igneous Rock - Pictures, Definition & More - Geology.

These names are for specific types of granite. These names require a consideration of the grain size and the mineral composition of the rock - beyond determining that the rock is a granite. A petrologist might call these "granitoid rocks" rather than granites. There are many types of granite based upon mineral composition and texture..


Neo- - definition of neo- by The Free Dictionary.

2. a combining form used in the names of isomers having a carbon atom attached to four carbon atoms: neoarsphenamine..


The BGS Lexicon of Named Rock Units - British Geological Survey.

To use this dictionary, please enter the name or part-name of the rock unit that interests you; then click the "Submit Query" button. Alternatively, you can search by Computer Code or Preferred Map Code, if these are known. Searches may also be specified and performed on the basis of the Maximum Age of the rock unit or the Status Code..


Venus - Wikipedia.

Venus is one of the four terrestrial planets in the Solar System, meaning that it is a rocky body like Earth. It is similar to Earth in size and mass and is often described as Earth's "sister" or "twin". The surface pressure is 9.3 megapascals (93 bars), and the average surface temperature is 737 K (464 ?C; 867 ?F), above the critical points of both major constituents and making the surface ....


Stratum - Wikipedia.

In geology and related fields, a stratum (plural: strata) is a layer of rock or sediment characterized by certain lithologic properties or attributes that distinguish it from adjacent layers from which it is separated by visible surfaces known as either bedding surfaces or bedding planes. Prior to the publication of the International Stratigraphic Guide, older publications have defined a ....


Proteus (moon) - Wikipedia.

Proteus (/ ' p r o? t i: ? s /), also known as Neptune VIII, is the second-largest Neptunian moon, and Neptune's largest inner satellite.Discovered by Voyager 2 spacecraft in 1989, it is named after Proteus, the shape-changing sea god of Greek mythology. Proteus orbits Neptune in a nearly equatorial orbit at a distance of about 4.75 times the radius of Neptune's equator..


Galilean moons - Wikipedia.

The Galilean moons (/ ? g ae l I ' l i:. ? n /), or Galilean satellites, are the four largest moons of Jupiter: Io, Europa, Ganymede, and Callisto.They were first seen by Galileo Galilei in December 1609 or January 1610, and recognized by him as satellites of Jupiter in March 1610. They were the first objects found to orbit a planet other than the Earth. ....