Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Anton H. Maria"'
Publikováno v:
Lithos. :191-208
Permian dikes, sills, and diatremes in southern Illinois and northwestern Kentucky (the Omaha, Wildcat Hills, Cottage Grove, Will Scarlet, Williams, Grant, and Clay Lick intrusions) share similar geochemistry and are classified as ultramafic lamproph
Publikováno v:
Geological Society of America Abstracts with Programs.
Publikováno v:
Geological Society of America Abstracts with Programs.
GEOCHEMISTRY AND SR-ND ISOTOPIC COMPOSITIONS OF PERMIAN ULTRAMAFIC LAMPROPHYRES IN SOUTHERN ILLINOIS
Publikováno v:
Geological Society of America Abstracts with Programs.
Publikováno v:
Journal of Geoscience Education. 59:63-70
As an aid for teaching phase equilibria to undergraduate students of igneous and metamorphic petrology, we have designed a laboratory exercise that allows them to create a phase diagram from data produced by differential scanning calorimetry. By prep
Autor:
James F. Luhr, Anton H. Maria
Publikováno v:
Journal of Petrology. 49:2123-2156
We present geochemical data for Quaternary basalts, basanites, and lamprophyres within the Colima and Mascota volcanic fields at the western end of the Mexican Volcanic Belt. On the basis of data for 11 whole-rock samples plus 124 glass inclusions an
Autor:
Anton H. Maria, Steven Carey
Publikováno v:
Journal of Volcanology and Geothermal Research. 161:234-246
The morphology of volcanic particles can yield insight into magma fragmentation, transport processes, and style of eruption. However, the complexity and variability of volcanic particle shapes make quantitative characterization difficult. The techniq
Autor:
O. Don Hermes, Anton H. Maria
Publikováno v:
American Journal of Science. 301:286-312
A suite of volcanic rocks in the northwest corner of the Narragansett basin includes at least four basalt flows, two rhyolite flows, and associated pyroclastic rocks. The volcanics are interbedded with non-marine, sedimentary rocks within the lower p
Publikováno v:
Journal of Volcanology and Geothermal Research. 104:65-80
The morphology of sideromelane particles from jokulhlaup deposits in southeastern Iceland has been studied by fractal analysis to assess post-depositional changes associated with reworking. Fractal dimensions of particle boundaries were calculated fr
Publikováno v:
Geological Society of America Bulletin. 112:1507-1521
The October 1996 Gjalp eruption beneath Vatnajokull glacier led to one of the largest jokulhlaups (glacial floods) in Iceland in the twentieth century. A catastrophic discharge of meltwater and sediment swept across the Skeidararsandur flood plain to