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Inishtrahull Landing - Geograph
Inishtrahull ( ga, Inis Trá Tholl, possibly "island of the empty beach" or "island of the yonder beach") is the most northerly island of Ireland. It has an area of and lies about northeast of Malin Head, County Donegal. The most northerly landfall of Ireland, the Tor Beg rock, is another kilometre to the north. Inishtrahull is home to Ireland's northernmost lighthouse. The island had a resident community until 1929 and the lighthouse was staffed until 1987. Today it is uninhabited and has been designated a protected area due to its wildlife. Geology The island is formed of a granitic gneiss, a type of metamorphic rock, which is known as Inishtrahull Gneiss. It is dated at 1.7 billion years old, making it Paleoproterozoic in age, and is the oldest known rock on the Irish Islands. The Inishtrahull Gneiss is considered to form part of the Rhinns complex that is also exposed on the islands of Islay and Colonsay. The Rhinns complex is correlated with the Ketilidian metamorphic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NASA World Wind
NASA WorldWind is an open-source (released under the NOSA license and the Apache 2.0 license) virtual globe. According to the website (https://worldwind.arc.nasa.gov/), "WorldWind is an open source virtual globe API. WorldWind allows developers to quickly and easily create interactive visualizations of 3D globe, map and geographical information. Organizations around the world use WorldWind to monitor weather patterns, visualize cities and terrain, track vehicle movement, analyze geospatial data and educate humanity about the Earth." It was first developed by NASA in 2003 for use on personal computers and then further developed in concert with the open source community since 2004. As of 2017, a web-based version of WorldWind is available online. An Android version is also available. The original version relied on .NET Framework, which ran only on Microsoft Windows. The more recent Java version, WorldWind Java, is cross platform, a software development kit (SDK) a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metamorphic Rock
Metamorphic rocks arise from the transformation of existing rock to new types of rock in a process called metamorphism. The original rock (protolith) is subjected to temperatures greater than and, often, elevated pressure of or more, causing profound physical or chemical changes. During this process, the rock remains mostly in the solid state, but gradually recrystallizes to a new texture or mineral composition. The protolith may be an igneous, sedimentary, or existing metamorphic rock. Metamorphic rocks make up a large part of the Earth's crust and form 12% of the Earth's land surface. They are classified by their protolith, their chemical and mineral makeup, and their texture. They may be formed simply by being deeply buried beneath the Earth's surface, where they are subject to high temperatures and the great pressure of the rock layers above. They can also form from tectonic processes such as continental collisions, which cause horizontal pressure, friction, and distorti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ceramium Shuttleworthianum
''Ceramium shuttleworthianum'' is a small marine red alga. Description ''Ceramium shuttleworthianum'' is a small alga fundamentally monosiphonous with densely interwoven branches. The cylindrical branches are incompletely corticate. Spines are formed in whorls on the cortical bands near the apices of the branches which are inrolled near the tips. The spines have a multicellular base merging with the cortical bands cells and are 2 to 3 cells long.Maggs, C.A. and Hommersand, M.H. 1993. ''Seaweeds of the British Isles Volume 1 Rhodophyta Part 3 Ceramiales'' Natural History Museum, London Only 3 other species in the British Isles have spines which help in identification: '' Ceramium echionotum'', '' Ceramium ciliatum'', '' Ceramium gaditanum''. on the rocks, mussels and in rock pools in the littoral. Habitat Generally growing in the littoral zone and is common on exposed shores on barnacles and on mussel '' Mytilus'' and limpets.Bunker,F.StP., Maggs, C.A., Brodie, J.A. and Bunker, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plumaria Plumose )
{{Genus disambiguation ...
Plumaria may refer to: * a synonym for ''Eriophorum'', a plant genus * ''Plumaria'' (alga), a red algae genus in the family Wrangeliaceae * The pre-Hispanic artistic practice of using feathers in artwork, particularly headdresses in Latin America, most prominently Mexico (see Mexican featherwork Mexican featherwork, also called "plumería", was an important artistic and decorative technique in the pre-Hispanic and colonial periods in what is now Mexico. Although feathers have been prized and feather works created in other parts of the wor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhodymenia Pseudopalmata
''Rhodymenia'' is a genus of red algae Red algae, or Rhodophyta (, ; ), are one of the oldest groups of eukaryotic algae. The Rhodophyta also comprises one of the largest phyla of algae, containing over 7,000 currently recognized species with taxonomic revisions ongoing. The majority ..., containing the following species: *'' Rhodymenia acanthophora'' Greville *'' Rhodymenia adnata'' Okamura *'' Rhodymenia arborescens'' E. Y. Dawson *'' Rhodymenia ardissonei'' (Kuntze) Feldmann *'' Rhodymenia caespitosa'' P. J. L. Dangeard *'' Rhodymenia californica'' Kylin *'' Rhodymenia callophylloides'' Hollenberg & I. A. Abbott *'' Rhodymenia capensis'' J. Agardh *'' Rhodymenia caulescens'' (Kützing) A. J. K. Millar *'' Rhodymenia cinnabarina'' J. Agardh *'' Rhodymenia coacta'' Okamura & Segawa *'' Rhodymenia coccocarpa'' (Montagne) M. J. Wynne *'' Rhodymenia coespitosella'' L'Hardy-Halos *'' Rhodymenia corallina'' (Bory de Saint-Vincent) Greville *'' Rhodymenia crozetii'' Levring *'' Rh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Callophyllis Laciniata
''Callophyllis'' is a red algae genus in the family Kallymeniaceae. Several species are exploited as edible seaweed Edible seaweed, or sea vegetables, are seaweeds that can be eaten and used for culinary purposes. They typically contain high amounts of fiber. They may belong to one of several groups of multicellular algae: the red algae, green algae, and ...s under the common name carola, most commonly '' Callophyllis variegata''. References External links Red algae genera Kallymeniaceae Taxa named by Friedrich Traugott Kützing Edible algae {{red algae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bonnemaisonia Asparagoides
''Bonnemaisonia asparagoides'' is a species of red alga in the family Bonnemaisoniaceae Bonnemaisoniaceae is a family of red algae in the order Bonnemaisoniales. References External links * Red algae families Bonnemaisoniaceae, * {{Rhodophyta-stub .... References Bonnemaisoniales {{Rhodophyta-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colonsay
Colonsay (; gd, Colbhasa; sco, Colonsay) is an island in the Inner Hebrides of Scotland, located north of Islay and south of Mull. The ancestral home of Clan Macfie and the Colonsay branch of Clan MacNeil, it is in the council area of Argyll and Bute and has an area of . Aligned on a south-west to north-east axis, it measures in length and reaches at its widest point. Geology The Colonsay Group, which takes its name from the island, is an estimated sequence of mildly metamorphosed Neoproterozoic sedimentary rocks that also outcrop on the islands of Islay and Oronsay and the surrounding seabed. The sequence has been correlated with the Grampian Group, the oldest part of the Dalradian Supergroup. It includes the meta wackes of the Oronsay Greywacke Formation, the sandstones of the Dun Gallain Grit Formation, the metasandstones and metamudstones of the Machrins Arkose, Kilchattan and Milbuie formations, the sandstones and phyllites of the Kiloran Flags Formation and the phy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
