Scenes and adventures in the semi-alpine region of the Ozark Mountains of Missouri and Arkansas . mber Louisiana became a State, August 1812 Missouri Territory erected, 4th June 14 * L (161) 162 APPENDIX. generally replaced or represented by hornblende. The feldspar, whichconstitutes three-fourths of the mass, is of a dull red hue. The rock inconnection is greenstone trap, which is sometimes porphyritic. I observedsmall masses of sulphuret of iron in some parts of this rock. The of this formation appears to have been of the most ancient eraof geological action ; for the stratified li
Scenes and adventures in the semi-alpine region of the Ozark Mountains of Missouri and Arkansas . mber Louisiana became a State, August 1812 Missouri Territory erected, 4th June 14 * L (161) 162 APPENDIX. generally replaced or represented by hornblende. The feldspar, whichconstitutes three-fourths of the mass, is of a dull red hue. The rock inconnection is greenstone trap, which is sometimes porphyritic. I observedsmall masses of sulphuret of iron in some parts of this rock. The of this formation appears to have been of the most ancient eraof geological action ; for the stratified limestones and sandstones, whichlie upon or in juxtaposition to these elevations, have not been disturbedin their horizontality. The altitude of this primitive tract does not pro-bably exceed one thousand feet above the waters of the St. Francis blocks of the red sienite have been detached, and scattered south-wardly over the secondary rocks, apparently by the force of some antiquedeluge, setting from the north. The whole series of formations may bejudged of by the following diagram:. The general aspect of the country is sterile, though not lands lie rolling, like a body of water in gentle agitation. In someplaces they rise into abrupt cliffs, where the rock formations , they present the form of diluvial ridges, sparingly coveredwith forest, and bearing a growth of prairie-grass and herbage. Thewestern banks of the Mississippi, between St. Genevieve and Hercula-neum, present a mural front to this district, in a series of elevated per-pendicular cliffs of compact limestone. The whole coast extending toSt. Louis, appears to be sufficiently elevated to have served as a formerbarrier to waters covering the low grounds of Illinois. The strata exhibitancient water-marks of a diluvial character. They are broken through,from the west, by small streams draining the mine country. No indications of lead-ore have been found in these cliffs. The mine
Size: 2734px × 914px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorschoolcr, bookcentury1800, bookdecade1850, bookyear1853
