452 THE GEOLOGY OF THE NEW HEBRIDES, 



Tasiriki to Talapone (see Plate xxv. for Section) — Our track 

 lay through Penanbo, then over the coral terraces in a fairly 

 direct line to Partua Tabua. Soon after leaving; the \illage of 

 Narerea the plateau of more recent rocks was left behind, and 

 the steep ascent of Partua Tabua begun over Miocene rocks with 

 occasional outcrops of andesite and tuffs. The descent on the 

 far side was steeper than the ascent, until finally the creek below 

 Maliu was arrived at, where outcrops of agglomerate were noted. 

 From this point the track rises in gentle stages to La La Vura. 



The rocks in the vicinity of our headquarters at La La Vura 

 proved to be mostly agglomerates, with occasional flows of 

 olivine pyroxene andesite. At higher elevations hornblende 

 andesites and pyroxene andesites were continuously met with 

 until we finally arrived at the neck of land separating Lobweri 

 from Talapone. Here a small outcrop of mineral tuff was noted. 

 Further on, after passing over the andesites of Talapone, we 

 again met with outcrops of these mineral tuffs, which, from their 

 similarity to those found on the Wai Bubo, are probably of 

 submarine origin, arguing a subsequent upheaval of quite 4000 ft. 



On our return journey we met with an outcrop of Miocene 

 limestone between Lobweri and Partua Tabua (133), followed by 

 outcrops of volcanic rock, and again, further developments of the 

 Miocene series (134) at an elevation of about 1500 ft. From this 

 point down to the meeting of Dry Creek and the Malikoliko 

 continuous outcrops (176, 178, 182) of the Miocene beds were met 

 with. Just at this spot they have been intruded by a horn- 

 blende andesite (Sec. 3, §6), which near its junction with the 

 intruded rocks, passes into a pyroxene andesite. 



Beyond, outcrops of andesite are met with until near C. L^kuani, 

 where the recent coral limestone predominates. 



Several fossils of this limestone proved to be : — 



Corah — 7, 17. 



Gasirojwds — 14, 41. 



Wuss, on account of its situation, handy to mountainous 

 country, is a particularly interesting locality. Good sections of 

 steeply dipping Miocene tuffaceous rocks are to be noted on every 



