Generally speaking soils in the northern Argentine area are arranged in the following pattern by decreasing longitude and altitude lithosols, andosols, cambisols and regosols.
12.
The soils around the precincts of the village are regosols derived from Kalahari sands and shallow rocky basalt-derived pockets are to be found in the district.
13.
Some 50 million hectares of Regosols occur in the wet / dry tropics, most especially in northern Australia, and another 36 million hectares in mountain areas.
14.
Regosols cover an estimated 260 million hectares worldwide, mainly in arid areas in the mid-western United States, Northern Africa, the Near East and Australia.
15.
Excluded from the Regosols are weakly developed soils that classify as Leptosols ( very shallow soils ), Arenosols ( sandy soils ) or Fluvisols ( in recent alluvial profiles.
16.
The soil of the Park is constituted mainly by eutric regosols ( soils on the convergent toe slope, having typical horizontal arrangements ), all of them fertile and easily erodible with low retention of moisture.
17.
The dominant soil types in Central Lombok Regency are 41, 635 ha complex of Mediterranean Chocolate ( 34 % ), Grey Gromusol 34, 306 ( 28 % ) and Grey regosol 20, 387 ( 17 % ).
18.
What I've found so far is that the sand hills region is composed of Quaternary-age " Eutric " regosols, bounded by much sediment and / or uplift of Eocene to Mesozoic ( think Niobrara Sea ) age, located at the edge of the Denver Basin, with loess deposits extending to its east and southeast ( yes, I have citations for all this info ), reaching all the way to the Mississippi River and beyond, while the loess sediment also reaches down to the mouth of the Mississippi River-perhaps this makes sense, since the Platte River runs through the southern sandhills.
