370 Geology of 



they appear again on the southern banks of the Orari, stretching to 

 theTimaru plateau. They also cover the coulees of volcanic rocks, of 

 which this plateau is formed. They reach to near the summit of Mount 

 Horrible and gradually thin out. as we follow them from the sea. 

 Some of the cliffs, formed entirely of loess are 70 to 80 feet high, and 

 exhibit throughout the whole section exposed along the sea, and 

 in railway cuttings, the same characteristic features. South of 

 Timaru they again overlie younger tertiary sedimentary strata and 

 form undulating downs reaching several miles below the "Waihao, after 

 which they have generally been destroyed by fluviatile action. An 

 outlier is situated about 15 miles above the mouth of the Waitaki, 

 south of Elephant Hill. In some localities they cap the shingle 

 formation of the Canterbury plains to a thickness of ten feet. In 

 "Westland, in some sheltered localities, beds of loess have also been 

 noted by me. 



