Now showing items 1-10 of 49
Direct measurements bearing on the question of the nighttime heating mechanism in the ionosphere
(Elsevier, 1967-01)
Langmuir probe measurements of electron temperature and density were made in the upper F-region on two different occasions near local midnight. The experiments were carried out at Fort Churchill, Canada, and at Wallops ...
Chlorite control of correlations between strain and anisotropy of magnetic susceptibility
(Elsevier, 1990)
Anisotropy of magnetic susceptibility (AMS) has in the past been used as an indicator of finite strain; mathematical relationships between the measured AMS ellipsoid and the finite strain ellipsoid in slates are numerous. ...
Composition and origin of summertime air pollutants at Deep Creek Lake, Maryland
(Elsevier, 1989)
A 1 month intensive summertime field study conducted in rural western Maryland resulted in a comprehensive set of fine particle, gaseous and meteorological data. Sulfur in the assumed form of ammonium sulfate accounted for ...
Climatic oscillations during the Precambrian era
(Kluwer Academic Publishers; D. Reidel Publishing Company ; Springer Science+Business Media, 1987-07)
A remarkably regular cyclicity with a fundamental period of ~11–12 cycles is preserved in the 680 million year old Elatina formation of South Australia. All but one of the many periods present can be interpreted as resulting ...
Separation of paramagnetic and ferrimagnetic susceptibilities using low temperature magnetic susceptibilities and comparison with high field methods
(Elsevier, 1994-02)
Magnetic susceptibility of rocks can be dominated by diamagnetic and paramagnetic matrix minerals, ferrimagnetic and antiferromagnetic trace minerals, or a combination. The interpretation of magnetic fabric data (anisotropy ...
Asperity distribution and earthquake occurrence in the southern Kurile Islands arc
(Elsevier, 1987-11)
The seismicity in the southern Kurile Islands arc is characterized by a complex overlapping of aftershock zones of a few great and many large earthquakes (Ms [greater, double equals] 7.0). The spatial relationships of these ...
SEASAT geoid anomalies and the Macquarie Ridge complex
(Elsevier, 1985-03-30)
The seismically active Macquarie Ridge complex forms the Pacific-India plate boundary between New Zealand and the Pacific-Antarctic spreading center. The Late Cenozoic deformation of New Zealand and focal mechanisms of ...
Earthquake source processes and subduction regime in the Santa Cruz Islands region
(Elsevier, 1990)
The source process of two large earthquakes that occurred in the Santa Cruz Islands subduction zone has been studied, one with a surface wave magnitude MS = 7.9 in 1966 and the other with MS = 7.7 in 1980. The seismic ...
The climatonomy of a needle ice event: An experiment in simulation climatology
(Springer-Verlag, 1971-09)
Soil surface temperature, net radiation and surface heave are used to evaluate a computer simulation of a needle ice event at Vancouver, Canada. The simulation which includes fusion and soil water flow effects, provides a ...
Geochemistry of rare earth elements in pacific hydrothermal sediments
(Elsevier, 1988-10)
The concentrations and mass accumulation rates of rare earth elements (REE) in hydrothermal sediments from two Pacific sites support earlier predictions that hydrothermal REE inputs are significant to the overall marine ...