The American Journal of Science, 201. sējumsJ.D. & E.S. Dana, 1921 |
No grāmatas satura
1.–5. rezultāts no 53.
1. lappuse
... zone of anamorphism and rock flow . PART III . Interpretation of dynamo - metamorphic features in the roofs of batholiths in mountain provinces . Preliminary statement . Features produced by movement of solutions and selective ...
... zone of anamorphism and rock flow . PART III . Interpretation of dynamo - metamorphic features in the roofs of batholiths in mountain provinces . Preliminary statement . Features produced by movement of solutions and selective ...
5. lappuse
... zone of fracture and rapid cooling , or they may have ceased their upward progress at a depth of miles , while still in the zone of flow and where their heat and their emanations would persist and affect the roof above them for at least ...
... zone of fracture and rapid cooling , or they may have ceased their upward progress at a depth of miles , while still in the zone of flow and where their heat and their emanations would persist and affect the roof above them for at least ...
7. lappuse
... zone of radiating dikes . The physiographic form points to a local hardening of the sedimentary formation , a zone of metamorphism which , as shown around the other stocks in the Livingston formation , is equally or even more resistant ...
... zone of radiating dikes . The physiographic form points to a local hardening of the sedimentary formation , a zone of metamorphism which , as shown around the other stocks in the Livingston formation , is equally or even more resistant ...
9. lappuse
... zones , as shown by the trend of the fault block structures . Erosion to a depth of some miles , or even to the present sea - level , would , however , show an enormous extension of batholithic outcrops , and remind one of the broad ...
... zones , as shown by the trend of the fault block structures . Erosion to a depth of some miles , or even to the present sea - level , would , however , show an enormous extension of batholithic outcrops , and remind one of the broad ...
12. lappuse
... zone , the Prospect gneiss is intersected . This is a belt exposed for more than thirty miles , with an average width of two miles , and striking slightly diagonal to the contact . It consists of sheets of slightly gneissoid coarse ...
... zone , the Prospect gneiss is intersected . This is a belt exposed for more than thirty miles , with an average width of two miles , and striking slightly diagonal to the contact . It consists of sheets of slightly gneissoid coarse ...
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Citi izdevumi - Skatīt visu
Bieži izmantoti vārdi un frāzes
Ankylosaurus armor arrangement atoms augite Basin batholithic beds biotite Bull bullæ Callville canine centrum chemical Chionophila cingulum clays cliff Cretaceous crystals delta deposits depth described determinate developed Devonian diameter Earth erosion evidence fault fauna feet figure folding foramen formation fossils genera genus Geological glacial gneiss granite Holotype hypocone igneous John Day Jour later layers length limestone lower magma magnesium magnesium oxide Marsh metamorphism miles minerals Mississippian molars molecules Moon Moon's Muddy Mountains Nodosaurus occur Oligocene orbit Oreodon orientite oxide Paleozoic Permian plane plates Polacanthus portion posterior postglenoid premolars present probably quartz quartzite region ridges River rocks sagittal crest sandstone satellite schists SCI.-FIFTH SERIES sea-level sediments shale skull space groups species specimens stability Stegosaurus strata structure surface Survey symmetry terraces thick tion U. S. Geol unconformity upper valley vertebræ width Windsor zone
Populāri fragmenti
424. lappuse - And, moreover, we have found that where science has progressed the farthest, the mind has but regained from nature that which the mind has put into nature. We have found a strange foot-print on the shores of the unknown. We have devised profound theories, one after another, to account for its origin. At last, we have succeeded in reconstructing the creature that made the foot-print. And Lo! it is our own.
262. lappuse - THE ANNUAL MEETING OF THE NATIONAL ACADEMY OF SCIENCES THE annual meeting of the National Academy of Sciences will be held at the Smithsonian Institution in Washington on April 16, 17 and 18, 1917.
256. lappuse - Science and the Division of Chemistry and Chemical Technology of the National Research Council.
433. lappuse - Committees of the National Academy of Sciences, the American Association for the Advancement of Science, the...
187. lappuse - The Blue Mountains formed the eastern and southern shores of this lake, but its other limits are difficult to ascertain, as this whole country has since been deeply buried by successive overflows of volcanic rock. It is only where the latter have been washed away that the lake deposits can be examined. The discovery and first explorations in this basin were made by Rev. Thomas Condon, the present state geologist of Oregon. The typical localities of this Miocene basin are along the...
187. lappuse - ... the lake deposits can be examined. The discovery and first explorations in this basin were made by Rev. Thomas Condon, the present state geologist of Oregon. The typical localities of this Miocene basin are along the John Day River, and this name may very properly be used to designate the lake basin. The strata in this basin are more or less inclined and of great thickness. One section near the John Day River, examined by the writer in 1871 and again in 1873, seems to indicate a thickness of...
62. lappuse - Pennsylvanian rather than the Mississippian (either early or late). Again there is nothing in the collection that may be justly cited as definitely opposed to correlation of the Stanley with lower Pottsville or basal Morrow, which conclusion I reached in my 'Revision' mainly on physical and diastrophic considerations.
153. lappuse - The formations of the Chester Series in western Kentucky and their correlates elsewhere, in Part 2 of Mississippian formations of western Kentucky: Ky.
290. lappuse - Knowlton goes so far as to say that "relative uniformity, mildness, and comparative equability of climate, accompanied by high humidity, have prevailed over the greater part of the earth, extending to, or into, polar circles, during the greater part of geologic time — since, at least, the Middle Paleozoic. This is the regular, the ordinary, the normal condition.
416. lappuse - ... reclaimed; this is diked to exclude the flood-tidal and freshet waters. At New Westminster the river is confined between drift ridges or upland areas, which rise 200 to 300 feet above the river. The upland area south of the river marks the inner edge of the delta and extends from a point on the river 3! miles below New Westminster nearly straight south to Boundary Bay. The delta is bounded on the north by the highland area extending from New Westminster nearly west to Point Grey. In its seaward...