Paleosol - Wikipedia
网页In geology and paleontology, a paleosol is a former soil preserved by burial underneath either sediments (alluvium or loess) or volcanic deposits (lava flows or volcanic ash), which in the case of older deposits have lithified into rock.
Paleosol - an overview | ScienceDirect Topics
网页Paleosols, in loess or other deposits, are soils of the past. Three types can be recognized, buried, exhumed (once buried, but now at the surface), and relict (not buried, but formed under a different environment in the past).
Paleosols in clastic sedimentary rocks: their geologic applications
网页1999年7月1日 · Paleosol–landscape associations in alluvial rocks at both the local and basinal scales. Pedofacies developed over a distance of <2 km, with weakly developed paleosols (Entisols or Inceptisols) grading into better-developed paleosols (Alfisols and …
网页A paleosol or fossil soil is a soil that formed on a landscape of the past. Soils form because of the physical, biological, and chemical modification of sediment or rock exposed at the earth surface. Most paleosols are found in sedimentary rocks, and, al-though first studied in the Quaternary record, they are now commonly recognized in strata ...
Sedimentologist's Guide for Recognition, Description, and ...
网页2017年1月1日 · Paleosol structure should be assessed using only freshly exposed rock that has not been altered by modern weathering; this typically requires digging into the outcrop at least 30 cm. Paleosol profiles with well-developed ped structure will readily crumble when dislodged with a sharp implement or digging tool.
Paleosols as Indicators of Paleoenvironment and Paleoclimate
网页Paleosols are ancient soils that have been incorporated into the geological record. Soils form in response to interactions among the lithosphere, hydrosphere, biosphere, and atmosphere, so paleosols potentially record physical, biological, and chemical information about past conditions near Earth's surface.
Paleosols as Indicators of Paleoenvironment and Paleoclimate
网页2014年7月3日 · Paleosols are ancient soils that have been incorporated into the geological record. Soils form in response to interactions among the lithosphere, hydrosphere, biosphere, and atmosphere, so...
Paleosols - SpringerLink
网页Paleosol is a layer of lithified ancient weathering profile or paleoweathering profile (not necessarily lithified “soils”) that formed in place by alteration of its parent geologic materials by physical, chemical, and in many cases, biological weathering processes.
Paleopedology as a Tool for Reconstructing Paleoenvironments …
网页2018年10月28日 · In this chapter, the paleosol macroscopic, micromorphological, mineralogical, and geochemical indicators of paleoecology are discussed with emphasis on basic analytical and interpretative techniques. These data can reveal a breadth of site-specific interpretations of vegetation, sedimentary …
Field recognition of paleosols | Paleosols and Weathering …
网页Three main features of paleosols are useful for distinguishing them from enclosing rocks: root traces, soil horizons, and soil structures. Fossil root traces are best preserved in formerly waterlogged paleosols.
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