Download or read book Geology of the Raukumara Area written by C. Mazengarb and published by . This book was released on 2000 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Geology of the Raukokore Area Raukumara Peninsula written by and published by . This book was released on 1957 with total page 277 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Basement Geology of the Motu River Mouth Area Raukumara Peninsula written by and published by . This book was released on 1977 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Geology of the Raukokore Area Raukumara Peninsula N I written by Winston Robert Moore and published by . This book was released on 1957 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Geology of the Whatatutu Subdivision Raukumara Division Poverty Bay written by James Henry Adams and published by . This book was released on 1909 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Cretaceous Stratigraphy of Raukumara Peninsula written by Colin Mazengarb and published by . This book was released on 1993 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Geology of the Whatatutu Subdivision Raukumara Division Poverty Bay written by James Henry Adams and published by . This book was released on 1910 with total page 654 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mesozoic Geology of the Matawai District Raukumara Peninsula written by and published by . This book was released on 1977 with total page 409 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Geology of the Ihungia Catchment Raukumara Peninsula written by and published by . This book was released on 1980 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Geology of the Ihungia Catchment Raukumara Peninsula written by Jill Antoinette Kenny and published by . This book was released on 1980 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 75 km2 Ihungia catchment is located half way between Gisborne and East Cape, on the Raukumara Peninsula, in the extreme east of the North Island of New Zealand. It includes part of the northeast-trending, complex belt of Cretaceous and Tertiary rocks occupying central and eastern Raukumara Peninsula, and the purpose of this project was to map and study both Cretaceous and Tertiary rocks. The "autochthonous" rocks of the Hikurangi beds and Tapuaeroa Formation, exposed in the north of the region, were deposited in the Late Cretaceous as thick mudstone and flysch accumulations, and subsequently deformed. The area then became a repository for three sheets, emplaced from the north over the "autochthonous" material. The first is thought to have been emplaced in Late Waitakian to Early otaian times (earliest Miocene), and is composed predominantly of Mokoiwi Formation mudstones (Motuan age). Blocks of Mangatu Group lithologies (Dannevirke to Arnold), enclosed in bentonite, are subordinate in volume. The sheet is exposed as a wide belt, north of the Ihungia road. The second thrust slice, occupying most of the catchment south and northwest of the road, contains thick accumulations of Upper Tertiary mudstones and flysch of the Ihungia Formation (including the igneous Ihungia Conglomerate Unit) and a bryozoan limestone (Kouetumarae Member - new member). It was probably emplaced during mid-Wanganui times (latest Pliocene). Whangai Formation shales and the Black Hills sandstone/flysch Member (new member) of the Wanstead Formation (both part of the Mangatu Group) are found in the third thrust sheet (emplaced sometime after the second thrust), which today occupies the Black Hills - Puketiti area in the southeast of the study area. Each thrust has been influenced by local faulting and folding. Twelve phases of megascopic faulting, including thrusting, have been recognised within the Ihungia catchment. Only the Mangarakeke Member (new member) of the Hikurangi beds, and the Ihungia Formation contain fossils. The Mangarakeke Flysch was dated as Ngaterian by Inoceramus hakarius, and an upper otaian to lower Lillburnian age was determined for the Ihungia Formation from foraminifera and mollusca. Ages of other units were taken from the literature. Structural details of the massive Ihungia mudstones were deduced only after extensive foraminiferal analysis. Inspection of spores and pollen grains from the Rangikohua Member (new member) of the Hikurangi beds and Wahingamuku unit (new unit) of the Black Hills Member, Wanstead Formation, by the Palynology Section of the Geological Survey, indicates that these lithologies are Ngaterian and Dannevirke to Arnold respectively. "Badlands"-type erosion is widespread in the Ihungia Valley. Deforestation by European settlers last century has lead to severe erosion of some lithologies of the Mokoiwi and Wanstead Formations, and shallow regolith failures cover much of the Ihungia Formation terrain. The more resistant Taitai Sandstone (Mokoiwi Formation), Rangikohua Sandstone, Wahingamuku Sandstone and Ihungia Sugar Loaf Greensand (new member of Wanstead Formation) and Kouetumarae Limestone, stand out in the landscape. Stabilisation of the land, by reafforestation and/or waterflow control, is needed urgently. Quaternary deposits, oil and gas seepages, and recent evaporite deposits are described briefly.

Download or read book The Geology of the Whatatutu Subdivision Raukumara Division Poverty Bay Classic Reprint written by James Henry Adams and published by Forgotten Books. This book was released on 2017-10-29 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The Geology of the Whatatutu Subdivision, Raukumara Division, Poverty Bay The general conditions within the Whatatutu Subdivision are not so favourable for geological investigation as might be expected from the topographical relief of the area. The rock formations are for the most part subject to rapid surface-decomposition, owing to which the crests and slopes of the ridges and spurs have become covered with a thick mantle of dis integrated rock. The beds of the main streams and of their tributaries afford the best outcrops for aiding the geologist in the mapping of the varied strata. Faces exposed by land-slips on the slopes of spurs and ridges occur sparingly, but give useful information. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Download or read book New Zealand Journal of Geology and Geophysics written by and published by . This book was released on 1985 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book New Zealand Journal of Geology and Geophysics written by and published by . This book was released on 1978 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book New Zealand Journal of Geology and Geophysics written by and published by . This book was released on 1958-02 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book New Zealand Journal of Geology and Geophysics written by and published by . This book was released on 1984-06 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book New Zealand Journal of Geology and Geophysics written by and published by . This book was released on 1974 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mineral Resource Assessment of M ori Land written by A. B. Christie and published by . This book was released on 2007 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: