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Waiʻanae Range
Waianae Range (sometimes referred to as the ''Waianae Mountains'') is the eroded remains of an ancient shield volcano that comprises the western half of the Hawaiian Island of Oahu. Its crest, at Kaʻala, is the highest peak on Oahu at . Like the neighboring Koolau, the Waianae Range is not a mountain range in the sense most people are familiar with, as the mountain range as a whole was created from a single volcano rather than plate tectonics. The oldest lava dated from the volcano are about 3.9 million years old. About 3.2 million years ago, the volcano's activity changed, the rate of eruption started to decrease and the composition of the lava erupted from the volcano changed. The volcano is thought to have last erupted about 2.5 million years ago. When active, the Waianae volcano's center of activity was at present-day Lualualei Valley. Intense erosion on the western flank of the mountain has destroyed much of those flanks. Thus, the mountain today is much smaller tha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Islands By Highest Point
This is a list of islands in the world ordered by their highest point; it lists island, islands with peaks by elevation. At the end of this article continent, continental landmasses are also included for comparison. Island countries and territories listed are those containing the highest point. __TOC__ List of islands with highest point by elevation Other notable island peaks Many of the following islands are selected for inclusion as the main island or having the highest peak in their island nation. The list includes some dependent or semi-dependent island overseas territories with their own ISO 3166-1 country code. The dependencies of Guernsey (Alderney, Sark, Herm) and St. Helena (Tristan da Cunha, Ascension Island) are listed as separate units. Nevis (Saint Kitts-Nevis) is also listed separately. The islands of the former Netherlands Antilles (Aruba, Curaçao, Bonaire, Saint Martin, Sint Eustatius, Saba) have been split up in separate units. The list also includes o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lualualei, Hawaii
Lualualei, Hawaii is the largest coastal valley on the leeward side of Oahu in Hawaii. It is located on the west side of the Waianae Range Waianae () is a census-designated place (CDP) in the City and County of Honolulu, Hawaii, United States. As of the 2020 census, the CDP population was 13,614. Its name means "waters of the mullet". Its etymology is shared with the far norther .... Etymology The name could mean either "beloved one spared", or more likely "flexible wreath", according to Hawaiian Language expert Mary Kawena Pukui. Geography The town on the makai side of the valley (westward towards the ocean) is Māili. United States Navy facilities The valley hosts several government communication stations including USN VLF Lualualei and the USCG Communication Station Honolulu. The Naval Magazine Lualualei also is located in the valley. The Waikele Gulch magazine was a 350-acre area where steep-banked ravines allowed tunnel construction with no two entrances facing. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pleistocene Shield Volcanoes
The Pleistocene ( ; referred to colloquially as the ''Ice Age'') is the geological epoch that lasted from to 11,700 years ago, spanning the Earth's most recent period of repeated glaciations. Before a change was finally confirmed in 2009 by the International Union of Geological Sciences, the cutoff of the Pleistocene and the preceding Pliocene was regarded as being 1.806 million years Before Present (BP). Publications from earlier years may use either definition of the period. The end of the Pleistocene corresponds with the end of the last glacial period and also with the end of the Paleolithic age used in archaeology. The name is a combination of Ancient Greek () 'most' and (; Latinized as ) 'new'. The aridification and cooling trends of the preceding Neogene were continued in the Pleistocene. The climate was strongly variable depending on the glacial cycle, oscillating between cold glacial periods and warmer interglacials, with the sea levels being up to lower th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pliocene Shield Volcanoes
The Pliocene ( ; also Pleiocene) is the epoch in the geologic time scale that extends from 5.33 to 2.58See the 2014 version of the ICS geologic time scale million years ago (Ma). It is the second and most recent epoch of the Period in the . The Pliocene follows the Epoch and is followed by the |
Hawaiian–Emperor Seamount Chain
The Hawaiian–Emperor seamount chain is a mostly undersea mountain range in the Pacific Ocean that reaches above sea level in Hawaii. It is composed of the Hawaiian ridge, consisting of the islands of the Hawaiian chain northwest to Kure Atoll, and the Emperor Seamounts: together they form a vast underwater mountain region of islands and intervening seamounts, atolls, shallows, banks and reefs along a line trending southeast to northwest beneath the northern Pacific Ocean. The seamount chain, containing over 80 identified undersea volcanoes, stretches about from the Aleutian Trench off the coast of the Kamchatka peninsula in the far northwest Pacific to the Kamaʻehuakanaloa Seamount (formerly Lōʻihi), the youngest volcano in the chain, which lies about southeast of the Island of Hawaiʻi. Regions The chain can be divided into three subsections. The first, the Hawaiian archipelago (also known as the ''Windward isles''), consists of the islands comprising the U.S. state ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polygenetic Shield Volcanoes
Polygenesis can refer to: * Polygenesis (linguistics), a theory of language origin * Polygenism, an obsolete theory of human origin * Gene duplication Gene duplication (or chromosomal duplication or gene amplification) is a major mechanism through which new genetic material is generated during molecular evolution. It can be defined as any duplication of a region of DNA that contains a gene ..., a form of genetic disorder resulting in the overexpression of a particular gene * Polygenetic landforms, landforms formed the accumulative action of various processes See also * Polygene, member of a group of interacting genes * Monogenism (other) {{disambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Landforms Of Oahu
A landform is a land feature on the solid surface of the Earth or other planetary body. They may be natural or may be anthropogenic (caused or influenced by human activity). Landforms together make up a given terrain, and their arrangement in the landscape is known as topography. Landforms include hills, mountains, canyons, and valleys, as well as shoreline features such as bays, peninsulas, and seas, including submerged features such as mid-ocean ridges, volcanoes, and the great oceanic basins. Physical characteristics Landforms are categorized by characteristic physical attributes such as elevation, slope, orientation, structure stratification, rock exposure, and soil type. Gross physical features or landforms include intuitive elements such as berms, cliffs, hills, mounds, peninsulas, ridges, rivers, valleys, volcanoes, and numerous other structural and size-scaled (e.g. ponds vs. lakes, hills vs. mountains) elements including various kinds of inland and oceanic waterbodi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mountains Of Hawaii
A mountain is an elevated portion of the Earth's crust, generally with steep sides that show significant exposed bedrock. Although definitions vary, a mountain may differ from a plateau in having a limited summit area, and is usually higher than a hill, typically rising at least above the surrounding land. A few mountains are isolated summits, but most occur in mountain ranges. Mountains are formed through tectonic forces, erosion, or volcanism, which act on time scales of up to tens of millions of years. Once mountain building ceases, mountains are slowly leveled through the action of weathering, through slumping and other forms of mass wasting, as well as through erosion by rivers and glaciers. High elevations on mountains produce colder climates than at sea level at similar latitude. These colder climates strongly affect the ecosystems of mountains: different elevations have different plants and animals. Because of the less hospitable terrain and climate, mountains te ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Extinct Volcanoes Of The United States
Extinction is the termination of an organism by the death of its Endling, last member. A taxon may become Functional extinction, functionally extinct before the death of its last member if it loses the capacity to Reproduction, reproduce and recover. As a species' potential Range (biology), range may be very large, determining this moment is difficult, and is usually done retrospectively. This difficulty leads to phenomena such as Lazarus taxon, Lazarus taxa, where a species presumed extinct abruptly "reappears" (typically in the Fossil, fossil record) after a period of apparent absence. Over five billion species are estimated to have died out. It is estimated that there are currently around 8.7 million species of eukaryotes globally, possibly many times more if microorganisms are included. Notable extinct animal species include Dinosaur, non-avian dinosaurs, Machairodontinae, saber-toothed cats, and mammoths. Through evolution, species arise through the process of specia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volcanoes Of Oahu
A volcano is commonly defined as a vent or fissure 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 because most of Earth's plate boundaries are underwater, most volcanoes are found underwater. For example, a mid-ocean 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 resulting from divergent tectonic activity are usually non-explosive whereas those resulting from convergent tectonic activity cause violent eruptions."Mid-ocean ridge tectonics, volcanism and geomorphology." Geology 26, no. 455 (2001): 458. https://macdonald.faculty.geol.ucsb.edu/papers/Macdonald%20Mid-Ocean%20Ridge%20Tectonics.pdf Volcanoes can also form where there is stretching an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Waianae Range
Waianae () is a census-designated place (CDP) in the City and County of Honolulu, Hawaii, United States. As of the 2020 census, the CDP population was 13,614. Its name means "waters of the mullet". Its etymology is shared with the far northern Wellington suburb of Waikanae, located in New Zealand. Geography Waianae is located at (21.447714, -158.179213). According to the United States Census Bureau, the CDP has a total area of , of which is land and , or 23.92%, is water. Demographics As of the censusAs of 2022, there are 13,749 people. In 2000, there were 2,595 households and 2,221 families residing in the CDP. The population density was . There were 2,925 housing units at an average density of . The racial makeup of the CDP was 9.35% White, 0.81% African American, 0.26% Native American, 19.44% Asian, 27.26% Pacific Islander, 0.97% from other races, and 41.92% from two or more races. Hispanic or Latino of any race were 14.00% of the population. There were 2,595 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volcanic Landslide
A volcanic landslide or volcanogenic landslide is a type of mass wasting that takes place at volcanoes. Occurrences All volcanic edifices are susceptible to landslides, particularly stratovolcanoes and shield volcanoes where landslides are important processes. Volcanic landslides range in size from less than to more than . The largest volcanic landslides on Earth occur from submarine volcanoes and are several times larger than those that occur on land. Submarine landslides with volumes of have occurred in the Canary Islands within the last 43 million years, but the largest submarine landslides could have been up to in volume. Massive submarine landslides have also taken place in the Hawaiian Islands over the last several million years, the largest of which constitute significant portions of the islands from which they originated. Smaller landslides have also been identified at volcanoes on Mars and Venus. Martian landslides reach lengths of and more whereas the largest Venus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
