I—C. 9.

C !'.

1911. NEW ZEALAND.

NEW ZEALAND GEOLOGICAL SURVEY (FIFTH ANNUAL REPORT (NEW SERIES) OF THE).

Presented to both Houses of the General Assembly by Command of Hi* Excellency.

CONTENTS. Page Page Letter of transnrittal .. .. .. .. 2 111. Economic geology— continued. Introduction .. .. .. .. .. 2 (2.) Coal — continued. Staff .. . . .. .. .. 2 Areas worked .. .. .. 8 Summary of operations .. .. .. 2 Areas remaining to be worked— Publications .. .. .. .. .. 2 Neighbourhood of Seddonville .. 8 Field-work in the Buller-Mokihinui Subdivision .. 3 South of State coal-mine .. 9 Introduction .. .. .. .. 3 Charming Creek area .. .. 9 I. Physiography .. .. .. .. 3 Recommendations .. .. .. 9 11. General geology .. .. .. .. 4 Summary of Mr. E. de C. Clarke's report on the New 9 Aorere Series .. .. .. .. 4 Plymouth Subdivision .. .. .. 10 Coal-measures . . .. . . .. 5 Outline of geology .. .. .. 10 Kongahu Series .. .. .. 5 Economic geology .. .. .. 10 Pleistocene and Recent deposits .. .. 6 Oil .. .. .. .. .. 10 Granite . . .. .. .. 6 Recommendations concerning oil-prospecting Gneiss .. .. .. .. 6 Iron-ores .. .. .. . . 11 111. Economic geology .. .. .. 6 Coal in the Charleston and Brighton districts .. 11 (1.) Alluvial gold .. .. ..6 >(1.) Charleston lignite .. .. ..11 (2.) Coal .. .. .. ..6 (2.) Brighton lignite .. .. .. ..11 Coal-seams .. .. ..6 (3.) Bullock Creek coal .. .. ..12 Conditions of deposition .. .. 8 (4.) Fox River coal and anthracite .. .12 Mode of formation .. .. 8 (5.) Porarari River coal .. .. 13 Conditions affecting development of (6.) Extent of coal-areas .. .. .. 13 coal-seams .. .. ..8 (7.) Economic value of coal-areas .. ..13 Spontaneous combustion .. . . 8 (8.) General remarks .. .. .. 14 MAP. Geologioal Sketch-map of the Seddonville - Charming Creek Coal-area . . .. .. .. .. At end.