Thermal Erosion

Thermal Erosion

 

the combined thermal and mechanical action of running water on frozen rocks and ice. The initial stage in the thermal erosion of frozen rocks is usually preceded by the thawing of ice wedges contained in the rocks. Such thawing results in the formation of a polygonal network of grooves on the exposed surface. In the presence of a natural surface slope, these grooves become channels for the runoff of meltwater and rain, which in turn subject the frozen rocks to a further thermal and erosive action.

References in periodicals archive ?
Additionally, the survey will assist in identifying areas of thermal erosion in the BIF which are key target areas.
Research was conducted to determine if a metalcasting facility could improve its monitoring of clay and moisture levels in green sand with non-standard testing methods, such as a thermal erosion test (TET) and modified cone jolt toughness test.
Physical, mechanical, and dynamic measurements were taken on the samples using a number of common testing procedures, though the major focus was on the thermal erosion test and modified cone jolt toughness tests.
Friability and wet tensile strength tests are currently used in the industry, the modified cone jolt and thermal erosion tests may allow metalcasters to improve the control of their green sand systems, in a more timely manner.
The point of inflection corresponds to the thermal erosion test data.
Thermal Erosion Testing: The thermal erosion test is similar to the friability test in purpose, but the information acquired is different.
When thermal erosion data is examined as compactability increases for the same level of clay in the green sand system, the percent green sand loss decreases at room temperature (Fig.
This drives ice erosion, which can be classified into three categories: (i) thermal erosion, (ii) thermo-mechanical erosion and (iii) mechanical erosion.
Thermal erosion is due to thermal expansion of ice.
In principle, the process is based on thermal erosion. Hence, an efficient EDM process can only be realized by a purposefully uneven material removal on the two electrodes.
Owing to higher concentrations of heat-producing elements, the Earth must have generated more heat during the Archean, but many believe that once stabilized, continental keels were not subjected to thermal erosion. Consequently, proportionally more heat must have been dissipated through the oceans.
Geological evidence from core demonstrated that the majority of holes have intersected the main Silver Swan thermal erosion area found beneath the komatiite channel.
Full browser ?