Moeraki Boulders

The Moeraki Blocks

We made a weekend stop on the way to Oamaru to see the Moeraki Boulders. Explore Moeraki Boulders in Hampden, New Zealand: High spherical blocks on the shores of New Zealand. An all-in-one audio guide presenting the originality of the Moeraki Boulders. Admire the remarkable size and almost perfect round shape of the Moeraki Boulders and study the beautiful patterns that mark the rocks.

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The Moeraki Boulders are neither globular to subspheric in form nor large in area. Nearly similar sphere-shaped blocks, known as Koutu Boulders, are located on the shores of Hokianga Harbour, North Island, New Zealand, between Koutu and Kauwhare points, on the shores, rocks and below the sea-bed.

The Koutu Boulders, like the Moeraki Boulders, are large, reach a maximum of 3 meters indiambright. Big sphere-shaped cone shapes similar in form and dimensions to Moeraki blocks have been found in many other states. Moeraki blocks should not be mistaken for stromatoliths, of which fossil specimens may look similar.

a ^ a p d e Boles, J. R., J. A. Landis, and P. Dale, 1985, The Moeraki Boulders; Histology of Some Septaric Relic, Journal of Sedimentary Petrology, Vol. 55, n. 3, p. 398-406. a ^ a d e Thyne, G.D., and J.R. Boles, 1989, Isotope Detection for the Formation of the Moeraki-Septarian Congregations, New Zealand, Journal of Sedimentary Petrology. v. 59, n. 2, p. 272-279.

WELLINGTON, New Zealand. A. R. Moeraki Boulders dans A. H. McLintock, Hrsg, An Encyclopaedia of New Zealand. Wellington, New Zealand. Pearson, M.J., and C.S. Nelson, 2005, Organic Georochemistry and Stabile Isotopic Compositions of New Zealand New Zealand Concrete Carbonates and Fillings of Calcites, New Zealand Journal of Geology & Geophysics v. 48, pp. 395-414.

"Organochemical Signature of New Zealand Calcium Fillings and Calzite Fractures as Possible Indications of Fluids Migration". The New Zealand Petroleum Conference Proceedings. Auckland, New Zealand. Scotchman, I.C., 1991, The Geochhemistry of Concrements from the Kimmeridge Clay Formation of South and East England, Sedimentology. v. 38, pp. 79-106.

Hudson, J.D., M.L. Coleman, B.A. Barreiro and N.T.J. Hollingworth, 2001, Septary concretions from Oxford Clay (Jurassic, England, UK): Participation of initial naval and several exterior porous liquids, sedimentology. v. 48, pp. 507-531. Brunsden, D., 1969, Secrets of the Moeraki and Katiki boulders. Biek, B., 2002, North Dakota North Dakota Geological Survey, Bismarck, North Dakota.

The Hokianga Tourism Association, nd, Koutu Boulders pictures of cannonballs similar in scale and origins to the Moeraki Boulders.

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