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Ashlar (/ ˈ æ ʃ l ər /) is a cut and dressed stone, worked using a chisel to achieve a specific form, typically rectangular in shape. The term can also refer to a structure built from such stones. [1] Ashlar is the finest stone masonry unit, and is generally rectangular . It was described by Vitruvius as opus isodomum or trapezoidal.
In 2021 the book was praised by Palaguta and Starkova in Terra Artis. Art and Design. In their review, they stated that the problem of creating a basis for systematizing patterns on the principles of symmetry was solved in Symmetries of Culture. They give three reasons for continuing to value the book: firstly, despite the passage of time, the ...
Current ripple marks, unidirectional ripples, or asymmetrical ripple marks are asymmetrical in profile, with a gentle up-current slope and a steeper down-current slope. The down-current slope is the angle of repose, which depends on the shape of the sediment.
A thematic map is a type of map that portrays the geographic pattern of a particular subject matter (theme) in a geographic area. This usually involves the use of map symbols to visualize selected properties of geographic features that are not naturally visible, such as temperature, language, or population. [ 1 ]
It is one of the terms used by geographers and landscape historians to classify settlements. [1] It is most accurate with regard to planned settlements: its concept is one in which the houses, even most farmhouses within the entire associated area of land, such as a parish , cluster around a central church, which is perhaps close to the village ...
John Edward Marr in his The Scientific Study of Scenery [23] considered his book as, 'an Introductory Treatise on Geomorphology, a subject which has sprung from the union of Geology and Geography'. An early popular geomorphic model was the geographical cycle or cycle of erosion model of broad-scale landscape evolution developed by William ...
Pattern detection via the identification of such geographical clusters is a very simple and generic form of geographical analysis that has many applications in many different contexts. The emphasis is on localized clustering or patterning because this may well contain the most useful information. [citation needed]
Settlement geography is a branch of human geography that investigates the Earth's surface's part settled by humans. According to the United Nations' Vancouver Declaration on Human Settlements (1976), "human settlements means the totality of the human community – whether city, town or village – with all the social, material, organizational, spiritual and cultural elements that sustain it."