THE TIMARU SANDS.

Timaru Herald, Volume CVI, Issue 16235, 3 April 1917, Page 2

THE TIMARU SANDS.

Editor of the "Timaru Herald " Ll . S, J'»—The two greatest silt and sand discharging rivers on the Ninetv-Nile Peach are the Rakala and the Ransitata. After lipavy inland rains the Ashhurton, Orari,'and Opihi also discharge much ready-made sand and silt into the !«>a. The mouths of thp rivors named all lie north-east, of Dashinsr Rocks. Stormy seas f<rom due east strike the beach obliquely and probablv drive «ilt and sand down the southwest shore from the-river mouths on occasions when a. flood happens to be in •the rivers. Tb P ,+ii P<) rv that much of the sand in Hambnc Titw comes from the north-onsjt, either portly in suspension or-driven along; the shore, lias found no out«r>oken converts. On tlio r+her hand. lit.+le mention is now made of +he_ nrnfessional theorv that the Katborino- of sand ; xl +he *W is oau«vl bv the gnVinsr of +^ e shingle in the vicinity of the breakwater, which & ■then oJirried round in suspension from %b a south. '

The mouth, of the R&kain. is e'tnatp duo west of +h'p ent'a.ncf 1 ' to Akaroa harbour. and. n r >rth-pa t+ «;P3i<! their forcp in rmiuiTiq: "«n'nth-wpst ploirr tfi?, 'shor -1 from the Rakaia to £hn Vnshdvke. An interesting auestion is '•Do east aTid north-east sea <storni«: lie+, long *no>i"h to oarrv and ' silt from \th" ah«vo-nampd flooded rivers to. w'tfiin tho eh«'ter of th° eastern rubble ,«"ctens>ion of Tiniani harbour?" T am, etc., ' - A t n\TEi,Y 'THEORIST. March 31, 1917.