Tags Soil

Tag: Soil

Types of Rocks

Geologists classify rocks into three major groups: igneous rock, sedimentary rock, and metamorphic rock. Metamorphic Rock forms from other rocks that are changed by...

From rocks in Colorado, evidence of a ‘chaotic solar system’

Plumbing a 90 million-year-old layer cake of sedimentary rock in Colorado, a team of scientists from the University of Wisconsin-Madison and Northwestern University has...

Study tracks ‘memory’ of soil moisture

The top 2 inches of topsoil on all of Earth's landmasses contains an infinitesimal fraction of the planet's water—less than one-thousandth of a percent....

Report calls for improved methods to assess earthquake-caused soil liquefaction

Several strong earthquakes around the world have resulted in a phenomenon called soil liquefaction, the seismic generation of excess porewater pressures and softening of...

Marine sediments record variations in the Earth’s magnetic field

Past variations in the strength of the Earth's magnetic field are reflected by the production of isotopes in the atmosphere. Researchers from the CNRS,...

Study finds Earth’s soils hosted life early

Way before trees or lichens evolved, soils on Earth were alive, as revealed by a close examination of microfossils in the desert of northwestern...

Evidence of first chief indicates Pacific islanders invented a new society...

New dating on the stone buildings of Nan Madol suggests the ancient coral reef capital in the Pacific Ocean was the earliest among the...

Modeling the contractive behavior of soft clay in a heating test

Unlike other geomaterials, soft clay can paradoxically contract upon heating. This phenomenon is termed the "volumetric contraction of soft clay due to heating." The thermodynamic...

Soil will absorb less atmospheric carbon than expected this century, study...

By adding highly accurate radiocarbon dating of soil to standard Earth system models, environmental scientists from the University of California, Irvine and other institutions...

New analyses of Martian chemical maps suggest water bound to sulfates...

A research team led by LSU Geology and Geophysics Assistant Professor Suniti Karunatillake reveals a spatial association between the presence of sulfur and hydrogen...

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