Analyzing and Mapping Natural Landscape Factors—Ozark Province 45 
In mapping and describing the Ozarks, quantitative methods 
were used wherever practicable; each significant factor of the 
physical environment was analyzed separately and the results of 
each study were mapped. Information obtained in this manner 
has been organized by a combination of analysis and synthesis": 
to develop the natural regions shown in Figure 4. 
GEOLOGY 
Data obtained from field observations and from geolonicn 
literature were analyzed into the following significant aspects 
of bed and mantle rock: 
l. Differential resistance to weathering and erosion of any 
two adjoining rock masses, 
2. Order of superposition of resistant (positive) and non- 
resistant (negative) masses. 
Structure, 
Outcrop pattern, 
Porosity and permeability . 
Rock type. 
Absolute resistance of each rock mass, 
eae ee es 
Mineral deposits. 
; . ienti od, 
3. Synthesis is considered a valid phase of the soeetine ee 
although subordinate to analysis'4. It is not restrictec 
been suggested's, 
eee ientific Investigation, 
14. Douglas Johnson: Role of Analysis in Scientific : : 
Bull. Geol. So of Amer., Vol. 44, 1933, pp. 461-493; reference is 
on p. 464, 
hi 
15. John Leighly: Some Comments on Soseuge gto we tes iat; 
Method, Annals Ass’n. of Amer. Geogr’s., Vol. 27, . pp. 
on d: 2 
reference is 
