|
West Mount Barren
West Mount Barren is part of the Fitzgerald River National Park located between Bremer Bay and Hopetoun on the south coast of Western Australia the coordinates of the summit of West Mount Barren are . West Mount Barren, along with East Mount Barren and Mid-Mount Barren were all named by Matthew Flinders in 1802 after their barren appearance. Description West Mount Barren rises 372 metres above sea level and forms part of the Barren Range within the national park. Mount Bland (320 metres) is the closest mountain feature and is situated approximately 5 km northeast from West Mount Barren. The Barren range is not continuous and although there are three distinct Mount Barrens (West, Mid and East) they are distinct peaks that are connected by coastal plain. Mid Mount Barren is approximately 20 km northeast of West Mount Barren and East Mount Barren is approximately 50 km northeast of West Mount Barren. Other peaks in the area include Woolbernup Hill, Thumb Peak, Mt Dr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hakea Victoria
''Hakea victoria'', commonly known as royal hakea and lantern hakea, is a shrub endemic to Western Australia and noted for its ornamental foliage. The Noongar name for the plant is Tallyongut. Description ''Hakea victoria'' has an erect slender growth habit growing to high and wide with few branches and does not form a lignotuber. The leaves are arranged alternately, with distinct veins on the upper and under side, long and wide. The leaves are rough and leathery, the margin wavy with prickly teeth and ending with a sharp point. The lower leaves are green and narrow, the upper leaves are broad, concave, more or less circular, yellow at the base and shading to green at the apex. The inflorescence is a cluster of 26-42 small cream-white, red or pink flowers in leaf axils that are almost obscured by the leaf shape. The smooth pedicel is long, pistil long and the perianth cream coloured. Flowering occurs from June to October. The woody fruits are about 25 mm long and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geologic Fault
In geology, a fault is a planar fracture or discontinuity in a volume of rock across which there has been significant displacement as a result of rock-mass movements. Large faults within Earth's crust result from the action of plate tectonic forces, with the largest forming the boundaries between the plates, such as the megathrust faults of subduction zones or transform faults. Energy release associated with rapid movement on active faults is the cause of most earthquakes. Faults may also displace slowly, by aseismic creep. A ''fault plane'' is the plane that represents the fracture surface of a fault. A ''fault trace'' or ''fault line'' is a place where the fault can be seen or mapped on the surface. A fault trace is also the line commonly plotted on geologic maps to represent a fault. A ''fault zone'' is a cluster of parallel faults. However, the term is also used for the zone of crushed rock along a single fault. Prolonged motion along closely spaced faults can blur the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Adenanthos Ellipticus
''Adenanthos ellipticus'', commonly known as the oval-leaf adenanthos, is a flowering plant from the family Proteaceae that is endemism, endemic to Western Australia where it is considered to be Declared Rare Flora. Description ''Adenanthos ellipticus'' grows as an open spreading shrub to 3 m (10 ft) high and 4 m (13 ft) wide. The leaves are long by wide, while the orange or reddish-pink coloured flowers are long. Taxonomy Alex George (botanist), Alex George described ''Adenanthos ellipticus'' in 1974, the species name derived from the Latin adjective ''ellipticus'' and referring to the shape of the leaves. It had been collected much earlier, in 1931 by William Blackall, W.E.Blackall. He published the name ''A. cuneata'' var. ''integra'' in 1954 but did not write a description so the name is invalid. It is classified in the Section (botany), section ''Adenanthos'' within the genus of the same name. Distribution and habitat ''Adenanthos ellipticus'' is fou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pimelea Physodes
''Pimelea physodes'', commonly known as Qualup bell, is a species of shrub that is endemic to Western Australia. It has egg-shaped to narrow elliptical leaves and distinctive bell-like inflorescences with tiny greenish flowers surrounded by long elliptical bracts. The inflorescence resembles those of some of the only distantly-related darwinia "bells" and the bracts are a combination of red, purple, green and cream-coloured. Description ''Pimelea physodes'' is a shrub that typically grows to a height of and has a single stem at ground level. The leaves are arranged in opposite pairs, more or less sessile, egg-shaped to narrow elliptical, long and wide and the same shade of green on both sides. The flowers are arranged in a bell-like inflorescence similar to those of some species of the distantly related darwinias, especially '' Darwinia macrostegia'', (Mondurup bell). The peduncle of the inflorescence is long. Each flower is green or creamy green with a floral cup long, th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Myrtaceae
Myrtaceae, the myrtle family, is a family of dicotyledonous plants placed within the order Myrtales. Myrtle, pōhutukawa, bay rum tree, clove, guava, acca (feijoa), allspice, and eucalyptus are some notable members of this group. All species are woody, contain essential oils, and have flower parts in multiples of four or five. The leaves are evergreen, alternate to mostly opposite, simple, and usually entire (i.e., without a toothed margin). The flowers have a base number of five petals, though in several genera, the petals are minute or absent. The stamens are usually very conspicuous, brightly coloured, and numerous. Evolutionary history Scientists hypothesize that the family Myrtaceae arose between 60 and 56 million years ago (Mya) during the Paleocene era. Pollen fossils have been sourced to the ancient supercontinent Gondwana. The breakup of Gondwana during the Cretaceous period (145 to 66 Mya) geographically isolated disjunct taxa and allowed for rapid speciation; i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Proteaceae
The Proteaceae form a family of flowering plants predominantly distributed in the Southern Hemisphere. The family comprises 83 genera with about 1,660 known species. Together with the Platanaceae and Nelumbonaceae, they make up the order Proteales. Well-known genera include ''Protea'', ''Banksia'', ''Embothrium'', ''Grevillea'', ''Hakea'' and ''Macadamia''. Species such as the New South Wales waratah (''Telopea speciosissima''), king protea (''Protea cynaroides''), and various species of ''Banksia'', ''soman'', and ''Leucadendron'' are popular cut flowers. The nuts of ''Macadamia integrifolia'' are widely grown commercially and consumed, as are those of Gevuina avellana on a smaller scale. Australia and South Africa have the greatest concentrations of diversity. Etymology The name Proteaceae was adapted by Robert Brown from the name Proteae coined in 1789 for the family by Antoine Laurent de Jussieu, based on the genus ''Protea'', which in 1767 Carl Linnaeus derived from t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sand
Sand is a granular material composed of finely divided mineral particles. Sand has various compositions but is defined by its grain size. Sand grains are smaller than gravel and coarser than silt. Sand can also refer to a textural class of soil or soil type; i.e., a soil containing more than 85 percent sand-sized particles by mass. The composition of sand varies, depending on the local rock sources and conditions, but the most common constituent of sand in inland continental settings and non-tropical coastal settings is silica (silicon dioxide, or SiO2), usually in the form of quartz. Calcium carbonate is the second most common type of sand, for example, aragonite, which has mostly been created, over the past 500million years, by various forms of life, like coral and shellfish. For example, it is the primary form of sand apparent in areas where reefs have dominated the ecosystem for millions of years like the Caribbean. Somewhat more rarely, sand may be composed of calciu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laterite
Laterite is both a soil and a rock type rich in iron and aluminium and is commonly considered to have formed in hot and wet tropical areas. Nearly all laterites are of rusty-red coloration, because of high iron oxide content. They develop by intensive and prolonged weathering of the underlying parent rock, usually when there are conditions of high temperatures and heavy rainfall with alternate wet and dry periods. Tropical weathering (''laterization'') is a prolonged process of chemical weathering which produces a wide variety in the thickness, grade, chemistry and ore mineralogy of the resulting soils. The majority of the land area containing laterites is between the tropics of Cancer and Capricorn. Laterite has commonly been referred to as a soil type as well as being a rock type. This and further variation in the modes of conceptualizing about laterite (e.g. also as a complete weathering profile or theory about weathering) has led to calls for the term to be abandoned alto ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vegetation
Vegetation is an assemblage of plant species and the ground cover they provide. It is a general term, without specific reference to particular taxa, life forms, structure, spatial extent, or any other specific botanical or geographic characteristics. It is broader than the term ''flora'' which refers to species composition. Perhaps the closest synonym is plant community, but ''vegetation'' can, and often does, refer to a wider range of spatial scales than that term does, including scales as large as the global. Primeval redwood forests, coastal mangrove stands, sphagnum bogs, desert soil crusts, roadside weed patches, wheat fields, cultivated gardens and lawns; all are encompassed by the term ''vegetation''. The vegetation type is defined by characteristic dominant species, or a common aspect of the assemblage, such as an elevation range or environmental commonality. The contemporary use of ''vegetation'' approximates that of ecologist Frederic Clements' term earth cover, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tectonic Uplift
Tectonic uplift is the geologic uplift of Earth's surface that is attributed to plate tectonics. While isostatic response is important, an increase in the mean elevation of a region can only occur in response to tectonic processes of crustal thickening (such as mountain building events), changes in the density distribution of the crust and underlying mantle, and flexural support due to the bending of rigid lithosphere. Tectonic uplift results in denudation (processes that wear away the earth's surface) by raising buried rocks closer to the surface. This process can redistribute large loads from an elevated region to a topographically lower area as well – thus promoting an isostatic response in the region of denudation (which can cause local bedrock uplift). The timing, magnitude, and rate of denudation can be estimated by geologists using pressure-temperature studies. Crustal thickening Crustal thickening has an upward component of motion and often occurs when continental crus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Conglomerate (geology)
Conglomerate () is a clastic sedimentary rock that is composed of a substantial fraction of rounded to subangular gravel-size clasts. A conglomerate typically contains a matrix of finer-grained sediments, such as sand, silt, or clay, which fills the interstices between the clasts. The clasts and matrix are typically cemented by calcium carbonate, iron oxide, silica, or hardened clay. Conglomerates form by the consolidation and lithification of gravel. They can be found in sedimentary rock sequences of all ages but probably make up less than 1 percent by weight of all sedimentary rocks. In terms of origin and depositional mechanisms, they are closely related to sandstones and exhibit many of the same types of sedimentary structures, e.g., tabular and trough cross-bedding and graded bedding.Boggs, S. (2006) ''Principles of Sedimentology and Stratigraphy.'', 2nd ed. Prentice Hall, New York. 662 pp. Friedman, G.M. (2003) ''Classification of sediments and sedimentary rocks.'' In G ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
_W_IMG_2431.jpg "Click for more on -> Myrtaceae")
