Add to ORKGOn the general geological map of Iowa there are three peculiarities in the areal distribution of the geological formations represented which excite particular attention. They indicate that not only has the terranal story not been yet all told but that owing to unusual misinterpretation the real facts have been unwittingly greatly distorted. One of these features is the notable southeastward straight trend of the eastern border of the basal Missourian, or Bethany, limestone as it leaves our state in Wayne County - a direction nearly at right angles to that which we would ordinarily expect
In all the Mississippi valley there is no geologic formation that is so misunderstood, or so illy co...
Cap au Gres is a name that was given by the early French voyageurs to a prominent sandstone headland...
In the recent description of the major physiographic provinces of Iowa (Pan-American Geologist, volu...
On the general geological map of Iowa there are three peculiarities in the areal distribution of the...
On the general geological map of Iowa there are three peculiarities in the areal distribution of the...
In the general section of the coal measures of Iowa, Missouri and Kansas there are two unconformitie...
With its even plains surface, the infrequency of bed-rock exposures, and the universal presence of t...
With its even plains surface, the infrequency of bed-rock exposures, and the universal presence of t...
Despite the circumstance that in the Iowa part of the Great Plains, lying between the Mississippi Ri...
Despite the circumstance that in the Iowa part of the Great Plains, lying between the Mississippi Ri...
Despite the circumstance that in the Iowa part of the Great Plains, lying between the Mississippi Ri...
It is a fact almost too well known to state here that the most important single problem in earth-stu...
It is a fact almost too well known to state here that the most important single problem in earth-stu...
It is a fact almost too well known to state here that the most important single problem in earth-stu...
In all the Mississippi valley there is no geologic formation that is so misunderstood, or so illy co...
In all the Mississippi valley there is no geologic formation that is so misunderstood, or so illy co...
Cap au Gres is a name that was given by the early French voyageurs to a prominent sandstone headland...
In the recent description of the major physiographic provinces of Iowa (Pan-American Geologist, volu...
On the general geological map of Iowa there are three peculiarities in the areal distribution of the...
On the general geological map of Iowa there are three peculiarities in the areal distribution of the...
In the general section of the coal measures of Iowa, Missouri and Kansas there are two unconformitie...
With its even plains surface, the infrequency of bed-rock exposures, and the universal presence of t...
With its even plains surface, the infrequency of bed-rock exposures, and the universal presence of t...
Despite the circumstance that in the Iowa part of the Great Plains, lying between the Mississippi Ri...
Despite the circumstance that in the Iowa part of the Great Plains, lying between the Mississippi Ri...
Despite the circumstance that in the Iowa part of the Great Plains, lying between the Mississippi Ri...
It is a fact almost too well known to state here that the most important single problem in earth-stu...
It is a fact almost too well known to state here that the most important single problem in earth-stu...
It is a fact almost too well known to state here that the most important single problem in earth-stu...
In all the Mississippi valley there is no geologic formation that is so misunderstood, or so illy co...
In all the Mississippi valley there is no geologic formation that is so misunderstood, or so illy co...
Cap au Gres is a name that was given by the early French voyageurs to a prominent sandstone headland...
In the recent description of the major physiographic provinces of Iowa (Pan-American Geologist, volu...