Rock Weathering
What is the term for rocks that experience fragmentation or loss of materials without a chemical reaction?
What is mechanical weathering?
What is the property that clays possess that holds and attracts cations in soil solutions?
What is a negative charge?
Podzolization is known as?
What is the downward transport of Fe and Al within organic acids
Chlorine, sulfur, and nitrogen in stream water is sourced from?
What is the atmosphere?
A geologic process that carries sedimentary rocks to the mantle.
What is subduction
Silica can be retained in this format when most of it gets weathered in stream water.
What is a secondary mineral?
Al3+>H+>Sr2+>Ca2+>Mg2+>Rb+>K+>NH4+>Na+>Li+
What is the sequence of cations that displace each other in soils?
In grasslands, the amount of phosphorous is greater for soils derived from ...?
What is sandstone?
_ increases when vegetation is removed, yet human construction has blocked the transport of suspended materials in rivers.
What is erosion?
The difference between these two minerals is the amount of magnesium and aluminum.
What makes a mineral mafic vs felsic?
This mineral crystallizes out of the magma first and therefore weathers rapidly when exposed to the Earth's surface.
What is olivine?
pH-1/2(pCa) = k
What is the expression for lime potential?
The dominant weathering of soil minerals in the forest A-horizon is caused by organic acids that are derived from...?
What is microbial decomposition of litter
2.5 g/cm3 is the _ _ of suspended sediment.
What is specific gravity?
The term for complete soil profiles is called?
What is a pedon?
The chemoautotrophic bacterium helps mediate iron is soils contaminated by mining operations.
What is Thiobacillus ferrooxidans
PO43->SO42->Cl->NO3-
What is the sequence of anion adsorption?
CALDEP suggests that most CaCO3 horizons were formed during what epoch? And what was occurring in the desert landscape during that time?
What is the Pleistocene and more rain?
70% (13.5x1015 g/yr) of the global transport of suspended sediments occurs in the _ of _ _.
What are the rivers of southern Asia?
Cation exchange capacity acts to buffer the acidity of many temperate soils.
What is soil buffering?
Various ions are released when rocks react with _ and _ _ is known as _ _.
What is, acidic and oxidizing substances, and chemical weathering
What organism's ability to produce and release oxalic acid supports the phosphorus nutrition of plants and fungal mats?
What is mycorrhizal fungi?
Usually designated by a whitish layer beneath the forest floor, consisting of ultra-resistant weathering quartz is an indication of...
What is the removal of Fe, Al and organic matter?
The dominant sources of rock weathering are...
What are Ca, Mg, K, Fe, and P?
Losses of dissolved constituents from terrestrial ecosystems represent the products of chemical weathering and cause _ _ of the landscape.
What is chemical denudation?