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Mount Taylor (New Mexico)
Mount Taylor ( nv, Tsoodził) is a dormant stratovolcano in northwest New Mexico, northeast of the town of Grants. It is the high point of the San Mateo Mountains and the highest point in the Cibola National Forest. It was renamed in 1849 for then- president Zachary Taylor. Previously, it was called ''Cebolleta'' (tender onion) by the Spaniards; the name persists as one name for the northern portion of the San Mateo Mountains, a large mesa. The Navajo, for whom the mountain is sacred, still call it Turquoise Mountain (''Tsoodził''). Mount Taylor is largely forested with some meadows, rising above the desert below. The mountain is heavily eroded to the east. Its slopes were an important source of lumber for neighboring pueblos. Mount Taylor volcanic field Mount Taylor volcano is a prominent volcano that is part of a larger volcanic field that trends to the northeast. The Mount Taylor volcanic field includes Mesa Chivato to the northeast and Grants Ridge to the south ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cibola County, New Mexico
Cibola County is a county in the U.S. state of New Mexico. As of the 2010 census, the population was 27,213. Its county seat is Grants. It is New Mexico's youngest county, and the third youngest county in the United States, created on June 19, 1981, from the westernmost four-fifths of the formerly much larger Valencia County. Cibola County comprises the Grants, New Mexico Micropolitan Statistical Area. The county is a rich mining area with numerous Uranium mines. Geography According to the U.S. Census Bureau, the county has an area of , of which is land and (0.05%) is water. Adjacent counties * McKinley County - north * Sandoval County - northeast * Bernalillo County - east * Valencia County - east * Socorro County - southeast * Catron County - south * Apache County, Arizona - west National protected areas * Cibola National Forest (part) * El Malpais National Conservation Area * El Malpais National Monument * El Morro National Monument Demographics 2000 census ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mesa
A mesa is an isolated, flat-topped elevation, ridge or hill, which is bounded from all sides by steep escarpments and stands distinctly above a surrounding plain. Mesas characteristically consist of flat-lying soft sedimentary rocks capped by a more resistant layer or layers of harder rock, e.g. shales overlain by sandstones. The resistant layer acts as a caprock that forms the flat summit of a mesa. The caprock can consist of either sedimentary rocks such as sandstone and limestone; dissected lava flows; or a deeply eroded duricrust. Unlike ''plateau'', whose usage does not imply horizontal layers of bedrock, e.g. Tibetan Plateau, the term ''mesa'' applies exclusively to the landforms built of flat-lying strata. Instead, flat-topped plateaus are specifically known as '' tablelands''.Duszyński, F., Migoń, P. and Strzelecki, M.C., 2019. ''Escarpment retreat in sedimentary tablelands and cuesta landscapes–Landforms, mechanisms and patterns.'' ''Earth-Science Reviews, no. 10 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
48 Acoma Pueblo View Of Mount Taylor To North
48 may refer to: * 48 (number) * one of the years 48 BC, AD 48, 1948, 2048 * ''48'' (novel) * 48'' (magazine) * "48", a song by Tyler, the Creator from the album ''Wolf'' * 48, a phone network brand of Three Ireland Three Ireland, officially Three Ireland (Hutchison) Limited (formerly Hutchison 3G Ireland Ltd), is a telecommunications and internet service provider operating in Ireland as a subsidiary of CK Hutchison, operating under the global Three bran ... * "Forty Eight", a song by Karma to Burn from the album '' V'', 2011 See also * A48 (other) {{number disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cabezon Peak
Cabezon Peak is a large volcanic plug that is a prominent feature in northwestern New Mexico. It rises to in elevation, and nearly 2,000 feet above the floor of the Rio Puerco Valley. Cabezon Peak is two miles south of the old ghost town of Cabezon and the Rio Puerco. This volcanic neck is formed of basalt and is part of the Mount Taylor volcanic field. A volcanic neck or plug is formed when magma from an existing volcano solidifies in the pipe or neck and the surrounding sediment is eroded away. Marine Cretaceous rocks of the Mancos Shale and Point Lookout Sandstone are exposed around the base of Cabezon Peak. Cabezon means “big head” in Spanish. This stems from a Navajo myth which holds that it is the head of the giant Ye’i-tsoh after being slain by the twins Nayenezgani and To’badzistsini. The first geologist to study Cabezon Peak was likely Clarence E. Dutton, who also photographed the peak in 1884–1885. Further studies were carried out by Douglas Wilson Johnson in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rio Grande Rift
The Rio Grande rift is a north-trending continental rift zone. It separates the Colorado Plateau in the west from the interior of the North American craton on the east. The rift extends from central Colorado in the north to the state of Chihuahua, Mexico, in the south. The rift zone consists of four basins that have an average width of . The rift can be observed on location at Rio Grande National Forest, White Sands National Park, Santa Fe National Forest, and Cibola National Forest, among other locations. The Rio Grande rift has been an important site for humans for a long time, because it provides a north–south route that follows a major river. The Rio Grande follows the course of the rift from southern Colorado to El Paso, where it turns southeast and flows toward the Gulf of Mexico. Important cities, including Albuquerque, Santa Fe, Taos, Española, Las Cruces, El Paso, and Ciudad Juárez, lie within the rift. Geology The Rio Grande rift represents the eastern ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colorado Plateau
The Colorado Plateau, also known as the Colorado Plateau Province, is a physiographic and desert region of the Intermontane Plateaus, roughly centered on the Four Corners region of the southwestern United States. This province covers an area of 336,700 km2 (130,000 mi2) within western Colorado, northwestern New Mexico, southern and eastern Utah, northern Arizona, and a tiny fraction in the extreme southeast of Nevada. About 90% of the area is drained by the Colorado River and its main tributaries: the Green, San Juan, and Little Colorado. Most of the remainder of the plateau is drained by the Rio Grande and its tributaries. The Colorado Plateau is largely made up of high desert, with scattered areas of forests. In the south-west corner of the Colorado Plateau lies the Grand Canyon of the Colorado River. Much of the Plateau's landscape is related to the Grand Canyon in both appearance and geologic history. The nickname "Red Rock Country" suggests the brightly colo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Extensional Tectonics
Extensional tectonics is concerned with the structures formed by, and the tectonic processes associated with, the stretching of a planetary body's crust or lithosphere. Deformation styles The types of structure and the geometries formed depend on the amount of stretching involved. Stretching is generally measured using the parameter ''β'', known as the ''beta factor'', where : \beta = \frac \,, ''t''0 is the initial crustal thickness and ''t''1 is the final crustal thickness. It is also the equivalent of the strain parameter ''stretch''. Low beta factor In areas of relatively low crustal stretching, the dominant structures are high to moderate angle normal faults, with associated half grabens and tilted fault blocks. High beta factor In areas of high crustal stretching, individual extensional faults may become rotated to too low a dip to remain active and a new set of faults may be generated. Large displacements may juxtapose syntectonic sediments against metamorphic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Basanite
Basanite () is an igneous, volcanic ( extrusive) rock with aphanitic to porphyritic texture. It is composed mostly of feldspathoids, pyroxenes, olivine, and plagioclase and forms from magma low in silica and enriched in alkali metal oxides that solidifies rapidly close to the Earth's surface. Description Basanite is an aphanitic (fine-grained) igneous rock that is low in silica and enriched in alkali metals. Of its total content of quartz, feldspar, and feldspathoid ( QAPF), between 10% and 60% by volume is feldspathoid and over 90% of the feldspar is plagioclase. Quartz is never present. This places basanite in the basanite/ tephrite field of the QAPF diagram. Basanite is further distinguished from tephrite by having a normative olivine content greater than 10%. While the IUGS recommends classification by mineral content whenever possible, volcanic rock can be glassy or so fine-grained that this is impractical, and then the rock is classified chemically using the TAS class ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Basalt
Basalt (; ) is an aphanitic (fine-grained) extrusive igneous rock formed from the rapid cooling of low-viscosity lava rich in magnesium and iron (mafic lava) exposed at or very near the surface of a rocky planet or moon. More than 90% of all volcanic rock on Earth is basalt. Rapid-cooling, fine-grained basalt is chemically equivalent to slow-cooling, coarse-grained gabbro. The eruption of basalt lava is observed by geologists at about 20 volcanoes per year. Basalt is also an important rock type on other planetary bodies in the Solar System. For example, the bulk of the plains of Venus, which cover ~80% of the surface, are basaltic; the lunar maria are plains of flood-basaltic lava flows; and basalt is a common rock on the surface of Mars. Molten basalt lava has a low viscosity due to its relatively low silica content (between 45% and 52%), resulting in rapidly moving lava flows that can spread over great areas before cooling and solidifying. Flood basalts are thick sequence ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trachybasalt
Trachybasalt is a volcanic rock with a composition between trachyte and basalt. It resembles basalt but has a high content of alkali metal oxides. Minerals in trachybasalt include alkali feldspar, calcic plagioclase, olivine, clinopyroxene and likely very small amounts of leucite or analcime. Description An aphanitic (fine-grained) igneous rock is classified as trachybasalt when it has a silica content of about 49% and a total alkali metal oxide content of about 6%. This places trachybasalt in the S1 field of the TAS diagram. Trachybasalt is further divided into sodium-rich '' hawaiite'' and potassium-rich ''potassic trachybasalt'', with wt% > + 2 for hawaiite. The intrusive equivalent of trachybasalt is monzonite. Trachybasalt is not defined on the QAPF diagram, which classifies crystalline igneous rock by its relative content of feldspars and quartz. However, the U.S. Geological Survey defines trachybasalt as a mafic volcanic rock (composed of over 35% mafic minerals) in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mafic
A mafic mineral or rock is a silicate mineral or igneous rock rich in magnesium and iron. Most mafic minerals are dark in color, and common rock-forming mafic minerals include olivine, pyroxene, amphibole, and biotite. Common mafic rocks include basalt, diabase and gabbro. Mafic rocks often also contain calcium-rich varieties of plagioclase feldspar. Mafic materials can also be described as ferromagnesian. History The term ''mafic'' is a portmanteau of "magnesium" and "ferric" and was coined by Charles Whitman Cross, Joseph P. Iddings, Louis Valentine Pirsson, and Henry Stephens Washington in 1912. Cross' group had previously divided the major rock-forming minerals found in igneous rocks into ''salic'' minerals, such as quartz, feldspars, or feldspathoids, and ''femic'' minerals, such as olivine and pyroxene. However, micas and aluminium-rich amphiboles were excluded, while some calcium minerals containing little iron or magnesium, such as wollastonite or apatite, were incl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pueblos
The Puebloans or Pueblo peoples, are Native Americans in the Southwestern United States who share common agricultural, material, and religious practices. Currently 100 pueblos are actively inhabited, among which Taos, San Ildefonso, Acoma, Zuni, and Hopi are the best-known. Pueblo people speak languages from four different language families, and each Pueblo is further divided culturally by kinship systems and agricultural practices, although all cultivate varieties of maize. Pueblo peoples have lived in the American Southwest for millennia and descend from Ancestral Pueblo peoples. The term ''Anasazi'' is sometimes used to refer to ancestral Pueblo people but it is now largely minimized. ''Anasazi'' is a Navajo word that means ''Ancient Ones'' or ''Ancient Enemy'', hence Pueblo peoples' rejection of it (see exonym). ''Pueblo'' is a Spanish term for "village." When Spaniards entered the area, beginning in the 16th-century with the founding of Nuevo México, they came across ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
