Smale, D.; Houghton, B.F.; McKellar, I.C.; Mansergh, G.D.; Moore, P.R.; Grant-Taylor, T.G.; Te Punga, M.T.; Speden, I.G. 1978 Geology and erosion in the Ruahine Range. Lower Hutt: New Zealand Geological Survey. New Zealand Geological Survey report G 20. 120 p.
Abstract: Cunningham and Stribling (1977) noted that "the incidence and rate of erosion appears to be linked to rock types and rock structure", and that there is a need for information on the rate of uplift. They recommended that the "NZ Geological Survey, DSIR, be asked to establish whether or not a relationship exists between erosion and geology in the Ruahine Range."Consequently, in order to be able to comment effectively on topics and to be able to recommend further research, Geological Survey undertook three investigations:1. Geology and erosion in the Ruahine Range (Smale et al). 2. Quaternary stratigraphy of the Ruataniwha Plain, east flank of Ruahine Range (Grant-Taylor), 3. Uplift of Ruahine Range as determined from the Late Cenozoic sequence of the west flank (Te Punga).The studies are presented herein, together with a statement on "Conclusions and Recommendations". More detailed discussion of the relationship of geology and erosion is given in Smale et al. The reader is referred to Fig 2 and Table 2 for summations of, respectively, the geological history of the Ruahine Range and the subdivision of the late Cenozoic of New Zealand.Studies 1 and 2 represent reconnaissance field surveys, while study 3 is primarily an evaluation of literature.Dr Alan Beu assisted significantly with the studies covering the late Cenozoic, and other staff of Geological Survey aided the field programme and compilation of the report.