Cryosphere Lithosphere
Cryosphere Lithosphere - Related Videos
13:38
Laser-Induced Fluorescence Emission (L.I.F.E.) as Novel Non-Invasive Tool for In-Situ Measurements of Biomarkers in Cryospheric Habitats
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Cited by 3 •
2019
Carbon fluxes in the cryosphere are hardly assessed yet but are crucial regarding climate change. Here we show a novel prototype device that captures the phototrophic potential in supraglacial environments based on laser-induced fluorescence emission (L.I.F.E.) technology offering high spectral and spatial resolution data under in situ conditions.
09:06
Removal of Exogenous Materials from the Outer Portion of Frozen Cores to Investigate the Ancient Biological Communities Harbored Inside
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Cited by 8 •
2016
The cryosphere offers access to preserved organisms that persisted under past environmental conditions. A protocol is presented to collect and decontaminate permafrost cores of soils and ice. The absence of exogenous colonies and DNA suggest that microorganisms detected represent the material, rather than contamination from drilling or processing.
07:28
Igneous Volcanic Rock
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2023
Source: Laboratory of Alan Lester - University of Colorado Boulder Igneous rocks are the products of cooling and crystallization of magma. Volcanic rocks are a particular variety of igneous rock, forming as a consequence of magma breaching the surface, then cooling and crystallizing in the subaerial environment. Magma is molten rock that typically ranges in temperature from approximately 800 °C to 1,200 °C (Figure 1). Magma itself is produced within the Earth via three primary melting...
08:28
An Overview of bGDGT Biomarker Analysis for Paleoclimatology
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2023
Source: Laboratory of Jeff Salacup - University of Massachusetts Amherst Throughout this series of videos, natural samples were extracted and purified in search of organic compounds, called biomarkers, that can relate information on climates and environments of the past. One of the samples analyzed was sediment. Sediments accumulate over geologic time in basins, depressions in the Earth into which sediment flows through the action of fluid (water or air), movement, and gravity. Two main types...
FAQs
Repeated freezing and thawing modify bedrock, soil structure, and surface stability. These changes can redistribute water and nutrients, reshape microsites, and influence where microbial and plant communities establish. In polar, alpine, and permafrost ecosystems, shifts in the timing or intensity of freeze–thaw conditions may therefore change habitat availability and contribute to ecological community change.
Glacial pressure helps drive physical changes in the underlying lithosphere, especially through erosion and sediment movement. By modifying landforms and relocating mineral material, these processes can alter soil development and the pathways through which water and nutrients move. Those physical changes create biological consequences because organisms respond to differences in substrate, moisture, and habitat structure.
Changes in frozen ground, sediment, soil, and water movement can affect where carbon and nutrients are stored and how they are redistributed through ecosystems. Warming is especially important because it changes cryosphere conditions and can modify these relationships. Biological research uses this connection to examine ecosystem change and the consequences for broader biogeochemical cycles.
A useful investigation considers the condition of frozen environments together with bedrock, soil, landforms, and biological communities. Researchers can relate freezing and thawing, glacial pressure, erosion, and sediment transport to changes in water and nutrient movement. Comparing these physical features with microbial and plant community patterns helps connect environmental processes to biological outcomes.
Biological studies connect physical observations of glaciers, ice sheets, sea ice, or permafrost with evidence about soils, sediments, microbial communities, and plants. The aim is not only to describe landform change, but also to determine how altered substrates and resource movement affect habitats, carbon storage, biodiversity, and ecosystem processes in polar, alpine, or permafrost settings.
Warming can change the state and behavior of frozen environments, which in turn affects the lithosphere and the habitats supported by it. Monitoring these linked changes helps researchers evaluate shifts in biodiversity, microbial and plant communities, carbon storage, and nutrient cycling. This makes cryosphere–lithosphere analysis relevant to predicting ecosystem responses across cold-region environments.