The Sulphur-springs of Northern Formosa
1867; Geological Society of London; Volume: 23; Issue: 1-2 Linguagem: Inglês
10.1144/gsl.jgs.1867.023.01-02.57
ISSN2058-105X
Autores Tópico(s)Landscape and Cultural Studies
ResumoI lately had an opportunity afforded me, by a cruise in H.M.S ‘Serpent,’ Commander Bullock, of visiting the remarkable sulphur-springs in the neighbourhood of Tamsuy, in the north-east part of the island of Formosa. These springs are situated among the hills about equidistant from Tamsuy (or Hoowei) and Mangka, the capital of the Tamsuy district, and are highly interesting from a geological point of view, indicating as they do the existence of volcanic action near the surface in these regions—a circumstance which we might have been led to expect from the frequent occurrence of earthquakes. The sulphur-springs which I am about to describe are not the only springs of the kind in those parts; others are indicated at no great distance. The road to them runs through a beautiful and highly cultivated district. Besides numerous paddy-fields situated upon the hillsides, and ingeniously irrigated by a series of platforms, down which the water flows from one to the other after the manner of the cascades of St. Cloud, a remarkable feature is an immense pineapple-plantation of many acres in extent; so that the verdure of these hills leaves one unprepared for the fact of subterranean heat finding a vent in such close proximity. About halfway up the ascent we cross a stream having the character of a mountain-torrent, the stones at the bottom of which are covered with a deep-green deposit, very copious in the quieter and more sheltered spots; and upon dipping one's hand into this tream, the temperature is
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