Search
Search Results
-
Mesoscale Circulations Forced by Differential Terrain Heating
The forcing of mesoscale systems by horizontal gradients of surface heating is conceptually one of the most straightforward physical processes in the...
-
Origin of low-18O metamorphic rocks from a Late Proterozoic shear zone in the Eastern Desert of Egypt
Anomalously low and variable 18 O/ 16 O ratios (whole rock δ 18 O SMOW =−1.9 to +6.0) have been measured in several Late Proterozoic metamorphic units...
-
Garnet zoning and metamorphism of the Barrovian type area, Scotland
A microprobe investigation of the high grade metamorphic zones from the Barrovian type area in Angus, Scotland, shows the importance of local zones...
-
A numerical compaction model of overpressuring in shales
A one-dimensional model of sediment compaction is presented to relate pressure, porosity, permeability, and fluid and solid-particle velocities in an...
-
Pollen Paleoclimatology in the Mediterranean since Messinian Time
A schematic reconstruction of climatic changes in the Mediterranean may be carried out on the basis of pollen. Research on the Messinian series...
-
Stratigraphic correlation
Whether the geologist is dealing with roadside outcrops, with subsurface data from a petroleum play, or with regional seismic lines, one of the first...
-
Modelling of Neutral and Ionized Atmospheres
The atmosphere around a planet is held together by the gravitational force. In the stationary state the weight of a column of air above the height...
-
Proterozoic seawater — felsic volcanics interaction W. Bergslagen, Sweden. Evidence for high REE mobility and implications for 1.8 Ga seawater compositions
Mg enrichment in diffusely bounded, schistose alteration zones occurring in Proterozoic submarine felsic volcanics NE of Hjulsjö, W. Bergslagen is...
-
Water Quality Modeling with Finite Elements and Interactive Graphics
This year marks the tenth anniversary of the passage into law by the United States Congress of the Federal Water Pollution Control Act Ammendments of...
-
Introduction
The marine environment places many obstacles in the path of the would-be experimentalist; this has led to the adoption of specialized instruments and...
-
Solar-Terrestrial Physics
Magnetic observatories monitor continuously the geomagnetic field at various latitudes and longitudes of the Earth. With the advent of rockets and...
-
The Surface Reactivity of Vermiculite Towards Hexamethylene Diisocyanate (HMDI)
The reaction of hexamethylene diisocyanate with the surface of heat-activated vermiculite parallels the reactions with the oxides SiO 2 , Al 2 O 3 , MgO...
-
Deep-Sea Sedimentation
In a volume on the geology of continental margins, a section on deep-sea sediments would seem in need of explanation. First, deep-sea sedimentation...
-
The Secondary Consolidation of Clay
A study is made of various types of viscoelastic effective stress-strain relations, and their influence on the time-settlement relations in secondary...
-
Microorganisms and the natural environment
Microorganisms are potentially capable of carrying out chemical transformations of organic and inorganic materials on a large scale. Their activity...