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Madera Group
The Madera Group is a group of geologic formations in northern New Mexico. Its fossil assemblage dates the formation to the middle to late Pennsylvanian period. Description The group consists primarily of marine limestones, and it is exposed in the Sandia Mountains, the Lucero Uplift (), the western Jemez Mountains, the Sangre de Cristo Mountains, and in the Manzano Mountains. The lower section of the group tends to be a gray limestone and the upper an arkosic limestone, and these have been divided into the La Pasada Formation and Alamitos Formation in the southern Sangre de Cristo Mountains. In the Manzano Mountains, the Madera has been divided into the Los Moyos, Wild Cow, and Bursum Formations. Another proposed division in the southeastern Sangre de Cristo Mountains is into the Porvenir and Alamitos Formations. Barry Kues and Katherine Giles have recommended the division of the Madera Group into the Gray Mesa Formation and Atrasado Formation in its western and southern ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
San Pedro Mountains
The Sierra Nacimiento (official name), or Nacimiento Mountains, are a mountain range in the northwestern part of the U.S. state of New Mexico. They are just west of the more prominent Jemez Mountains near the town of Cuba, and are separated from them by the Río Guadalupe and the Río de Las Vacas. This article will consider them as a unit together with the San Pedro Mountains, which are a smaller range contiguous with the Sierra Nacimiento on the north, and which are also part of the Nacimiento UpliftConfusingly, Nacimiento Peak is more properly part of the San Pedro Mountains. SeNacimiento Peak on TopoQuest and lie at the edge of the greater San Juan Basin, which sits atop the Colorado Plateau.Fagan 2005, p. 46. The combined range runs almost due north-south with a length of about 40 mi (65 km). The highest point in the combined range is the high point of the San Pedro Peaks, known unofficially as San Pedro Peak, 10,605 ft (3,232 m).The San Pedro Peaks are a small ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sangre De Cristo Mountains
) , country= United States , subdivision1_type= States , subdivision1= , parent= Rocky Mountains , geology= , orogeny= , area_mi2= 17193 , range_coordinates= , length_mi= 242 , length_orientation= north-south , width_mi= 120 , width_orientation= east-west , highest= Blanca Peak , elevation_ft= 14351 , coordinates= , highest_location= East of Alamosa, Colorado , map= , map_size= , map_caption= The Sangre de Cristo Mountains (Spanish for "Blood of Christ") are the southernmost subrange of the Rocky Mountains. They are located in southern Colorado and northern New Mexico in the United States. The mountains run from Poncha Pass in South-Central Colorado, trending southeast and south, ending at Glorieta Pass, southeast of Santa Fe, New Mexico. The mountains contain a number of fourteen thousand foot peaks in the Colorado portion, as well as all the peaks in New Mexico which are over twelve thousand feet. The name of the mountains may refer to the occasion ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bryozoa
Bryozoa (also known as the Polyzoa, Ectoprocta or commonly as moss animals) are a phylum of simple, aquatic invertebrate animals, nearly all living in sedentary colonies. Typically about long, they have a special feeding structure called a lophophore, a "crown" of tentacles used for filter feeding. Most marine bryozoans live in tropical waters, but a few are found in oceanic trenches and polar waters. The bryozoans are classified as the marine bryozoans (Stenolaemata), freshwater bryozoans (Phylactolaemata), and mostly-marine bryozoans (Gymnolaemata), a few members of which prefer brackish water. 5,869living species are known. At least two genera are solitary (''Aethozooides'' and ''Monobryozoon''); the rest are colonial. The terms Polyzoa and Bryozoa were introduced in 1830 and 1831, respectively. Soon after it was named, another group of animals was discovered whose filtering mechanism looked similar, so it was included in Bryozoa until 1869, when the two groups were no ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crinoid
Crinoids are marine animals that make up the class Crinoidea. Crinoids that are attached to the sea bottom by a stalk in their adult form are commonly called sea lilies, while the unstalked forms are called feather stars or comatulids, which are members of the largest crinoid order, Comatulida. Crinoids are echinoderms in the phylum Echinodermata, which also includes the starfish, brittle stars, sea urchins and sea cucumbers. They live in both shallow water and in depths as great as . Adult crinoids are characterised by having the mouth located on the upper surface. This is surrounded by feeding arms, and is linked to a U-shaped gut, with the anus being located on the oral disc near the mouth. Although the basic echinoderm pattern of fivefold symmetry can be recognised, in most crinoids the five arms are subdivided into ten or more. These have feathery pinnules and are spread wide to gather planktonic particles from the water. At some stage in their lives, most crinoids have ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brachiopod
Brachiopods (), phylum Brachiopoda, are a phylum of trochozoan animals that have hard "valves" (shells) on the upper and lower surfaces, unlike the left and right arrangement in bivalve molluscs. Brachiopod valves are hinged at the rear end, while the front can be opened for feeding or closed for protection. Two major categories are traditionally recognized, articulate and inarticulate brachiopods. The word "articulate" is used to describe the tooth-and-groove structures of the valve-hinge which is present in the articulate group, and absent from the inarticulate group. This is the leading diagnostic skeletal feature, by which the two main groups can be readily distinguished as fossils. Articulate brachiopods have toothed hinges and simple, vertically-oriented opening and closing muscles. Conversely, inarticulate brachiopods have weak, untoothed hinges and a more complex system of vertical and oblique (diagonal) muscles used to keep the two valves aligned. In many brachiopods, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jemez Springs
Jemez Springs (pronounced HEH-mes) is a village in Sandoval County, New Mexico, United States. The population was 250 at the 2010 census. Named for the nearby Pueblo of Jemez, the village is the site of Jemez State Monument and the headquarters of the Jemez Ranger District. The village and nearby locations in the Jemez Valley are the site of hot springs and several religious retreats. Geography Situated in the Jemez Mountains, Jemez Springs is located entirely within the Santa Fe National Forest. The village is sited on the Jemez River in the red rock San Diego Canyon. State Highway 4 passes through the settlement on the east bank of the Rio Grande tributary. Geothermal springs in and near the village feed the Jemez River. The village has a total area of , all land. History The Jemez Valley is thought to have been inhabited for the last 4500 years. The Spaniards who visited the area beginning in 1540 reported multiple Native American pueblos (villages), in the valley. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spencer G
Spencer may refer to: People *Spencer (surname) **Spencer family, British aristocratic family ** List of people with surname Spencer * Spencer (given name), a given name (including a list of people with the name) Places Australia *Spencer, New South Wales, on the Central Coast *Spencer Gulf, one of two inlets on the South Australian coast United States *Spencer, Idaho *Spencer, Indiana *Spencer, Iowa *Spencer, Massachusetts **Spencer (CDP), Massachusetts *Spencer, Missouri *Spencer, Nebraska *Spencer, New York **Spencer (village), New York *Spencer, North Carolina *Spencer, Ohio *Spencer, Oklahoma *Spencer, South Dakota *Spencer, Tennessee *Spencer, Virginia *Spencer, West Virginia *Spencer, Wisconsin **Spencer (town), Wisconsin *Spencer County, Indiana *Spencer County, Kentucky Ireland *Spencer Dock, North Wall, Dublin Arts and entertainment Fictional characters *Spencer, character in ''Beyblade'' *Spencer, character from ''Final Fantasy Mystic Quest'' * Spencer family (''G ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nacimiento Mountains
The Sierra Nacimiento (official name), or Nacimiento Mountains, are a mountain range in the northwestern part of the U.S. state of New Mexico. They are just west of the more prominent Jemez Mountains near the town of Cuba, and are separated from them by the Río Guadalupe and the Río de Las Vacas. This article will consider them as a unit together with the San Pedro Mountains, which are a smaller range contiguous with the Sierra Nacimiento on the north, and which are also part of the Nacimiento UpliftConfusingly, Nacimiento Peak is more properly part of the San Pedro Mountains. SeNacimiento Peak on TopoQuest and lie at the edge of the greater San Juan Basin, which sits atop the Colorado Plateau.Fagan 2005, p. 46. The combined range runs almost due north-south with a length of about 40 mi (65 km). The highest point in the combined range is the high point of the San Pedro Peaks, known unofficially as San Pedro Peak, 10,605 ft (3,232 m).The San Pedro Peaks are a smal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Porvenir Formation
The Porvenir Formation is a geologic formation exposed in the southeastern Sangre de Cristo Mountains of New Mexico. It preserves fossils dating back to the middle Pennsylvanian period. Description The formation is mostly marine and can be divided into three intergrading facies. The first, located primarily to the south, is mostly limestone with some interbedded shale and sandstone. The second facies, located to the north and northwest, is mostly gray shale with some thick limestone and thin sandstone beds. The third facies, found to the northeast, is mostly shale, limestone (including sandy and oolitic limestone) and arkosic sandstone. Thickness is . The formation rests conformably on the Sandia Formation and is disconformably overlain by the Alamitos Formation. Fossils The formation contains fusulinids of Desmoinesian ( Moscovian) age. History of investigation The formation was first named by Baltz and Myers in 1984, who considered it correlative with the lower part of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wild Cow Formation
The Atrasado Formation is a geologic formation in New Mexico. Its fossil assemblage dates the formation to the Kasimovian age of the Pennsylvanian. It was formerly known locally as the Wild Cow Formation or the Guadelupe Box Formation. Description The formation consists primarily of marine limestone with some sandstone and shale. It is exposed in the Sandia Mountains, the Lucero Uplift (), the western Jemez Mountains, and in the Manzano Mountains. The formation has been mapped as the Wild Cow Formation in the Manzano Mountains and as the Guadelupe Box Formation in the Jemez Mountains. However, Spencer G. Lucas and coinvestigators have recommended abandoning the name Wild Cow Formation and using Atrasado Formation throughout the Madera Group. The formation is likely correlative with the Alamitos Formation in the Sangre de Cristo Mountains. The formation is underlain by the Gray Mesa Formation, with its base defined by a sandstone interval atop an eroded limestone surface of th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Los Moyos Limestone
The Gray Mesa Formation is a geologic formation in New Mexico. Its fossil assemblage dates the formation to the Moscovian age of the Pennsylvanian. The formation as presently defined includes outcrops previously assigned to many local units, including the Los Moyos Formation, the Armendaris Group, and the Nakaye Formation. Description The formation consists mostly of cherty limestone, with a few shale, sandstone, and conglomerate beds. It is exposed in the Sandia Mountains, the Lucero Uplift (), the western Jemez Mountains, and the Manzano Mountains. The formation has been mapped as the Los Moyos Formation in the Manzano Mountains, but Spencer G. Lucas and coinvestigators have recommended abandoning the name Los Moyos Formation and using Grey Mesa Formation throughout the Madera Group. The Gray Mesa Formation likely correlates with the Porvenir Formation in the southeastern Sangre de Cristo Mountains. The formation is underlain at most locations by the Sandia Formation, with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alamitos Formation
The Alamitos Formation is a geologic formation exposed in the southern Sangre de Cristo Mountains of New Mexico. It preserves fossils dating back to the late Pennsylvanian to early Permian periods. Description The formation consists mostly of sandstone and conglomerate (50%) with lesser amounts of limestone (21%) and shale and siltstone (29%). The limestone tends to be more abundant in the upper third of the formation, though the formation shows considerable lateral variation. The formation is underlain by the La Pasada Formation in the southwestern Sangre de Cristo Mountains with the contact placed at an abrupt transition from limestone to arkosic sandstone and conglomerate. In the southern Sangre de Cristo Mountains, the underlying formation is the Porvenir Formation, while to the north the underlying formation is the Flechado Formation. The Alamitos Formation is overlain by the Sangre de Cristo Formation with the contact placed at the uppermost well-developed limestone bed. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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