Tools
Sorted by:
Try your query at:
 |
 |
 |
 |
 |
 |
Results 1 - 10
of
1,292
Chemical weathering on the Carnmenellis granite
"... SUMMARY. The behaviour of 25 major and trace elements, together with mineral changes, has been examined in a deep weathering profile on the Cammenellis granite, Cornwall. The bulk chemical and mineralogical composition ofthe regolith shows only minor changes from the parent rock indicat-ing a low de ..."
Abstract
-
Cited by 1 (0 self)
- Add to MetaCart
SUMMARY. The behaviour of 25 major and trace elements, together with mineral changes, has been examined in a deep weathering profile on the Cammenellis granite, Cornwall. The bulk chemical and mineralogical composition ofthe regolith shows only minor changes from the parent rock indicat-ing a low
The experimental chemical weathering of silicates
- Clay Minerals Bull
, 1961
"... Experiments carried out in the author's laboratory on the artificial weathering,: in an open system, of potash felspar, albite, leucite, tre-molite, olivine, sideromelane, muscovite, and clay minerals are reviewed, The results are assessed, and eventually compared on the basis of the amount of ..."
Abstract
-
Cited by 2 (0 self)
- Add to MetaCart
Experiments carried out in the author's laboratory on the artificial weathering,: in an open system, of potash felspar, albite, leucite, tre-molite, olivine, sideromelane, muscovite, and clay minerals are reviewed, The results are assessed, and eventually compared on the basis of the amount
Strong tectonic and weak climatic control of long-term chemical weathering rates,
- Geology,
, 2001
"... ABSTRACT The relationships among climate, physical erosion, and chemical weathering have remained uncertain, because long-term chemical weathering rates have been difficult to measure. Here we show that long-term chemical weathering rates can be measured by combining physical erosion rates, inferre ..."
Abstract
-
Cited by 26 (2 self)
- Add to MetaCart
ABSTRACT The relationships among climate, physical erosion, and chemical weathering have remained uncertain, because long-term chemical weathering rates have been difficult to measure. Here we show that long-term chemical weathering rates can be measured by combining physical erosion rates
Chemical weathering in a tropical watershed, Luquillo Mountains, Puerto Rico III: Quartz dissolution rates
, 1998
"... Chemical weathering in a tropical watershed, ..."
CHEMICAL WEATHERING OF BIOTITE- PLAGIOCLASE GNEISS by
"... The weathering of biotite-plagioclase gneiss was studied in a warm humid climate under good drainage conditions, in De Kalb County, Georgia. A series of samples ranging from completely weathered to fresh rock were studied. The degree of weathering was determined by bulk specific gravity and abrasion ..."
Abstract
- Add to MetaCart
The weathering of biotite-plagioclase gneiss was studied in a warm humid climate under good drainage conditions, in De Kalb County, Georgia. A series of samples ranging from completely weathered to fresh rock were studied. The degree of weathering was determined by bulk specific gravity
ABRASION pH, AN INDEX OF CHEMICAL WEATHERING
"... Abstract- I f a series of rock samples with granitic omposition i various tages of chemical weather-ing is ground in a mortar with distilled water and the pH of the slurry produced isdetermined, it will be evident hat the pH declines as the weathering increases. This relationship can be made useful ..."
Abstract
-
Cited by 1 (0 self)
- Add to MetaCart
Abstract- I f a series of rock samples with granitic omposition i various tages of chemical weather-ing is ground in a mortar with distilled water and the pH of the slurry produced isdetermined, it will be evident hat the pH declines as the weathering increases. This relationship can be made useful
Chemical Weathering of Limestones and Dolomites in A Cave Environment
"... The weathered parts of carbonate bedrock on cave walls are a consequence of its incomplete chemical dissolution. The phenomenon is expressed in parts of the caves where walls are in contact with clastic fluvial sediments, wetted by percolation water or wetted by condensation water, and not rinsed by ..."
Abstract
-
Cited by 2 (0 self)
- Add to MetaCart
The weathered parts of carbonate bedrock on cave walls are a consequence of its incomplete chemical dissolution. The phenomenon is expressed in parts of the caves where walls are in contact with clastic fluvial sediments, wetted by percolation water or wetted by condensation water, and not rinsed
Some engineering implications of chemical weathering of pyritic shale
"... Derbyshire, has linked the oxidation of pyrite in Edale Shale to the generation of acid groundwater. Chemical analysis of surface seepages suggests that reactions occur between this acid water and sedimentary minerals, including clays. The objective of the present research is to relate changes cause ..."
Abstract
-
Cited by 1 (0 self)
- Add to MetaCart
caused by chemical weathering to modifications of the en-gineering properties of those materials. It has been found that in closed system acid leaching experiments, some consti-tuents of shale react very rapidly. In order to quantify these changes in terms of the residual shear strength of shale, a
Parent material and chemical weathering in alpine soils on Mt
, 2007
"... Abstract We compared the elemental composition of soil and bedrock samples to determine the extent of chemical weathering and the nature of the soil parent material in alpine soils on Vermont's highest summit. Previously it was unclear whether these soils formed through weathering of bedrock, ..."
Abstract
-
Cited by 1 (0 self)
- Add to MetaCart
Abstract We compared the elemental composition of soil and bedrock samples to determine the extent of chemical weathering and the nature of the soil parent material in alpine soils on Vermont's highest summit. Previously it was unclear whether these soils formed through weathering of bedrock
Results 1 - 10
of
1,292
