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.

Paleosols are ancient soils, formed on landscapes of the past. Most paleosols have been buried in the sedimentary record, covered by flood debris, landslides, volcanic ash, or lava (Figure 1).

Recent paleosol research has introduced semiquantitative and quantitative measures for environmental and chronometric reconstructions that provide insight into major regional to global changes in temperature, precipitation, and atmospheric pCO2.

2020年12月2日 · Three types of paleosols are recognized, buried soils (those covered by a younger sediment or rock), exhumed paleosols (formerly buried soils that are now exposed at the surface due to erosion of overlying materials), and relict paleosols (soils that occur at the land surface, but which formed in an environment, such as a climate or biome, very ...

2024年9月18日 · 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). In loess deposits, paleosols have stratigraphic significance as they represent times of minimal or no loess accumulation.

2022年12月5日 · Paleosols are past soil horizons preserved in a geologic section, indicative of changes in variables such as temperature and precipitation. These deposits provide some of the most dramatic examples of changes in climate and the effect of …

黄土古土壤（paleosol）是地质历史时期，黄土堆积过程中，由于古气候的变化（暖、湿气候）形成的土壤层，形成后被后期黄土沉积掩埋。 一般发育较好且保存完整的 古土壤 剖面，可划分出 腐殖质层 、 粘化层 、 淀积层 和 母质层。 古土壤产状的面状分布，代表当时的古地形面，因此在水平空间上有地层对比意义，在重现古地形变化的研究上有重要作用。 古土壤按其埋藏和保留状态可分为埋藏古土壤和残余古土壤两类。 黄土古土壤（paleosol）是地质历史时期，黄土堆积过程 …

2024年6月1日 · Paleosols are unrivaled terrestrial archives of paleoclimatic, paleoecological, and paleoenvironmental conditions, yet their full utility and potential for unlocking critical information about past ecosystems, as well as their comparability with other records, is dependent upon the quality and thoroughness of such studies.

2024年8月30日 · A paleosol is a layer of soil that was formed on a landscape during a past geological period and has since been preserved, providing crucial insights into the Earth's ancient climates and ecosystems. These ancient soil layers are particularly valuable for paleoclimatology and paleoecology as they contain fossilized plant roots, microorganisms ...

A paleosol is a layer of lithified ancient weathering profile or paleoweathering profile (not necessarily a lithified “soil”) that formed in place by alteration of its parent geologic materials by physical, chemical, and in many cases, biological weathering processes.