 | | Journal (article/letter/editorial) | | The Origin of New Zealand Ultramafic Intrusions
by GWYNETH A. CHALLLIS
New Zealand Geological Survey...South Island of New Zealand, and include the large masses
of Dun Mountain near Nelson, Red Hills in the...the Wairau Valley, and Red Mountain in north-western Otago. Other, relatively small and almost completely...relatively unserpentinized
ultramafic intrusions at Dun Mountain and Red Hills. A smaller isolated mass
occurs...Manchester on June 2, 2015
ABSTRACT
Dun Mountain, Red Hills, and Red Mountain, are three of the largest ultramafic |  | | Report (article/chapter) | | Patuki and Croisilles melanges in South Island, New Zealand: genesis related
to Permian subductionâaccretion...(c. 278â270 Ma) supra-subduction zone (SSZ) Dun Mountain ophiolite is bordered to the east by the Pataki...the Jurassic Tethyan Ocean
in the Mediterranean region (e.g. Jones & Robertson 1990),
the Cretaceous Tethys...adjacent
to the approximately northâsouth-trending Dun Mountain
ophiolite, of late Early Permian (c. 278â270...is that of Raine et al. (2015), applicable to New Zealand,
correlated as far as possible with the international |  | Scott, James M., Smith, Steven A.F., Tarling, Matthew S., le Roux, Petrus J., Harris, Chris, Hoffmann, J. Elis, Scherzer, Sophie, Tulley, Chris J. (2019) Element and SrâO isotope redistribution across a plate boundary-scale crustal serpentinite mĂ©lange shear zone, and implications for the slab-mantle interface. Earth and Planetary Science Letters, 522. 198-209 doi:10.1016/j.epsl.2019.06.034 | Journal (article/letter/editorial) | | Geology, University of Otago, Dunedin 9054, New Zealand
Department of Geological Sciences, University...interface. For âŒ55 km in the Southern Alps of New Zealand, a 10 to 100s m wide blockin-matrix serpentinite...Fault â separates the harzburgitic base
of the Dun Mountain Ophiolite Belt from arc-derived metasedimentary...= +7.8h). These
changes require hydration of peridotite by ïŹuids derived from, or that interacted with...thicker zone of massive and variably serpentinized peridotite with a progressively decreasing
âslabâ element |  | | Journal (article/letter/editorial) | | Wairau ValleyâNew Zealand
by
G. A. CHALLIS
N.Z. Geological Survey, Lower Hutt, New Zealand
High-temperature...Blenheim in the north-east of the South Island of New Zealand (see Challis,
1965, fig. 1). It is at the southern...includes the well-known ultramafic intrusion of Dun Mountain.
A detailed survey was made of about 8 square...intrusion and as it occurs in the same lens as Dun Mountain, it has always been considered as such (Hess...Permian), similar
to those on the western margin of Dun Mountain (Lauder, 1965). The zone of
serpentinization |  | | Report (issue) | | ________ __ ___ __ _______ ______________ ___
Baldy Mountain, Oreg_ _ _______________ _____ _______________...Oregon____________
5. Field sketch of locality at Baldy Mountain, Oreg., showing
locations of analyzed specimens...progressive chemical variation
of samples from the Baldy Mountain area, Oregon______
7. Field sketch of locality...spectrographic analyses of samples from Baldy
Mountain area, Oregon (loc. 10)________________________...problem while studying the jadeite deposits within the New Idria serpentinite mass in the central part of the |  | | Journal (article/letter/editorial) | | Dunite. Localities of Analyzed Materials Dun Mountain, New Zealand I Publication authorized by the Director...e b s t e r ,N o r t h C a r o l i n a . . . . . New Caledonia Twin Sisters,Washington. Methods of Separation...r R e l a ti o n s h i p s Serpenlinization. New Zealand. Sweden.. .. Physical and Chemical Relations...earth's crust, which these rocks may reveal. Peridotite rocks are found in two distinct modes of occurrence-as...dunite samples from Dun Mountain, New Zealand, and from a locality near Noumea, New Caledonia. The dunite |  | | Journal (article/letter/editorial) | | Clinopyroxene REE Geochemistry of the Red
Hills Peridotite, New Zealand: Interpretation
of Magmatic Processes in...
The Red Hills peridotite in the Dun Mountain ophiolite of
South Island, New Zealand, is assumed to have...a paleo-mid-ocean ridge tectonic setting. The peridotite is composed
mostly of harzburgite and dunite... Partial melting
processes in the upper mantle region are generally thought to
be multi-stage near-fractional...REE geochemistry; Dun Mountain
ophiolite; Moho transition zone; orogenic peridotite; Red Hills
KEY WORDS: |  | | Journal (article/letter/editorial) | | 296-328]
PETROLOGY AND EVOLUTION OF THE
RED MOUNTAIN OPHIOLITE COMPLEX,
NE\V ZEALANDt
JOHN M. SINTON*... University of Otago, Dunedin, New Zealand
ABSTRACT. The Red Mountain area comprises a relatively coherent...relations at Red Mountain, the "high-temperature contact" aureole
around the Nelson Red Hills mass is...Overall petrology and stratigraphy indicate that
Red Mountain ophiolite generation was mainly by processes similar...around Red Mountain in northwest Otago, :New Zealand
includes a portion of the Permian Dun Mountain ophiolite |  | | Journal (article/letter/editorial) | | History of the Basal Alpine-Type
Peridotite, Red Mountain, New Zealand
by JOHNM. SINTON
Department of Geology...Geology,* University o/Otago, Dunedin, New Zealand
{Received 30 June 1976; in revised form 5 October...INTRODUCTION
T H E Red Mountain ultramafic massif of northwest Otago and south Westland,
New Zealand (Fig. 1) is...of the
Dun Mountain Ophiolite Belt (Coombs et al., 1973,1976). Peridotite bodies from
the Nelson sector...sector of the Dun Mountain belt have been described by Lauder
(1965), Challis (1965), Coleman (1966), Walcott |  | Hopkins, Jenni L., Timm, Christian, Millet, Marc-Alban, Poirier, André, Wilson, Colin J.N., Leonard, Graham S. (2016) Os isotopic constraints on crustal contamination in Auckland Volcanic Field basalts, New Zealand. Chemical Geology, 439. 83-97 doi:10.1016/j.chemgeo.2016.06.019 | Journal (article/letter/editorial) | | contamination in Auckland Volcanic Field
basalts, New Zealand
Jenni L. Hopkins, Christian Timm, Marc-Alban...contamination in Auckland Volcanic Field basalts, New Zealand, Chemical Geology (2016), doi: 10.1016/j.chemgeo...contamination in Auckland
PT
Volcanic Field basalts, New Zealand
RI
Jenni L. Hopkins*a, Christian Timmb, Marc-Alban...Wellington 6140,
New Zealand
MA
bGNS Science, PO Box 30368, Lower Hutt 5040, New Zealand
cDepartment of...basaltic volcanic fields in the North Island, New Zealand.
PT
Previous studies on AVF eruptive products |  | | Report (issue) | | Permian age) in the South Island and in small peridotite and serpentinite bodies near North Cape, Wellsford...furnace. New Zealand Occurrence, Production and Imports No chromite is currently mined in New Zealand: all...grade of 20-54% Cr2O3, were mined in east Nelson at Dun Mountain, Croisilles Harbour and DâUrville Island...ultramafic rocks (Dun Mountain Ophiolite Belt Figure 1: Location of chromite deposits in New Zealand. Figure...Figure 2: Dun Mountain (centre) area of east Nelson from which almost all of New Zealandâs chromite was produced |  | Tarling, Matthew S., Smith, Steven A. F., Scott, James M., Rooney, Jeremy S., Viti, Cecilia, Gordon, Keith C. (2019) The internal structure and composition of a plate-boundary-scale serpentinite shear zone: the Livingstone Fault, New Zealand. Solid Earth, 10 (4). 1025-1047 doi:10.5194/se-10-1025-2019 | Journal (article/letter/editorial) | | serpentinite shear zone: the Livingstone Fault, New Zealand
Matthew S. Tarling1 , Steven A. F. Smith1 , James...University of Otago, 360 Leith Street, 9016 Dunedin, New Zealand
2 Department of Chemistry, University of Otago...Otago, Union Place West, 9016 Dunedin, New Zealand
3 Dipartimento di Scienze Fisiche, della Terra e dellâAmbiente...Fault
in New Zealand is a terrane-bounding structure that separates the basal portions (peridotite; serpentinised...serpentinised peridotite;
metagabbros) of the Dun Mountain Ophiolite Belt from the
quartzofeldspathic schists |  | | Report (article/chapter) | | continental margin of SE Gondwana (South Island, New Zealand): summary
and overview
ALASTAIR H. F. ROBERTSON1*...Avalon, Lower Hutt 5010, New Zealand
3
395 Trafalgar Street, Nelson 7010, New Zealand
H.J.C., 0000-0002-6845-0126;...Permian (c. 285â
275 Ma) supra-subduction zone Dun Mountain ophiolite records subduction initiation and...proximal forearc basin unit. The sediments of the Dun MountainâMaitai Terrane (Maitai basin) represent a distal...chapter build on previous work, while
in some cases new, or revised, interpretations are proposed.
Preferred |  | Czertowicz, T. A., Scott, J. M., Waight, T. E., Palin, J. M., Van der Meer, Q. H. A., Le Roux, P., MĂŒnker, C., Piazolo, S. (2016) The Anita Peridotite, New Zealand: Ultra-depletion and Subtle Enrichment in Sub-arc Mantle. Journal of Petrology, 57 (4) 717-750 doi:10.1093/petrology/egw001 | Journal (article/letter/editorial) | | 1093/petrology/egw001
Original Manuscript
The Anita Peridotite, New Zealand:
Ultra-depletion and Subtle Enrichment...University of Otago, Leith Street, Dunedin 9054, New Zealand; 2Department of
Geosciences and Natural Resource...Downloaded from http://petrology.oxfordjournals.org/ at New York University on February 21, 2016
1
*Corresponding...2016
ABSTRACT
The orogenic Anita Peridotite in Fiordland, SW New Zealand, provides an opportunity to examine...geochemical characteristics indicate that the peridotite body experienced >30% melt extraction,
probably |  | | Journal (article/letter/editorial) | | Patuki Volcanics at south D'Urville Island, New
Zealand. In addition, gabbroic rocks comprise abundant...after revision May 5, 1983)
Introduction
The Dun Mountain Ophiolite Belt comprises a
discontinuous exposure...length of over 1100 km in the
South Island, New Zealand. Two sectors of the
ophiolite belt are dextrally...northern sector, in Nelson Province,
has received comparatively little attention. In Nelson
Province the ophiolitic...volcanics and ultramafics on
the eastern limb of the Nelson Regional Syncline
(Waterhouse, 1964). The mafic |  | | Journal (article/letter/editorial) | | presenceof
significantbrucite in all but the peridotite.
Thus it seems that serpentinitesoften contain...S0-mile interval of
the Great SerpentineBelt of New South \Vales,as describedby Benson
(1913-1918).These...serpentinized,periodotitemassesin
New Caledonia.The ten selectedNew Zealand samples are part of a
larger study...petrologicrelationshipsin the Great Ultramafic Belt of New Zealand. Eighty of the samples were collected at
numerouslocalitiesin...alteration to serpentine.In three of the samples(Dun Mtn.,
Twin Sisters,and Burro Mtn.) more than 40 volume |  | | Report (article/chapter) | | PaleozoicâMesozoic geology of South Island, New Zealand:
subduction-related processes adjacent to SE...Avalon, Lower Hutt 5010, New Zealand
3
395 Trafalgar Street, Nelson 7010, New Zealand
4
GNS Science, 764...764 Cumberland Street, Dunedin 9016, New Zealand
*Correspondence: Alastair.Robertson@ed.ac.uk
This Memoir...Island in its regional context, which includes
New Zealand as a whole, the continent of Zealandia, eastern...the Mesozoic. During this prolonged period, New
Zealand and adjacent crustal units were located along |  | | Journal (article/letter/editorial) | | AND~AGNrSIANROCKSOF NEW ZrALANDo
351
19. The NErnRITE a~d MAGNESIANROCKS Of the SouTrt ISLANV of
NEW ZEALAND. By ALEXANDER...work on the olivine-rock of the Dun
Mountain, and on the New Zealand nephri~e or ' greenstone,' the
rocks...the ' magnesian belt ' of the South Island of' New Zealand
have had an absorbing interest for students of...this paper is given a general account of the peridotite- and
serpentine-rocks of the South Island and...and a discussion of the nature
and origin of New Zealand nephrite. Those analyses which are
not attributed |  | | Report (issue) | | OsIr and laurite RuS2. The most common forms in New Zealand are platinum-iron, and osmium-iridiumruthenium...osmiridium and iridosmine, from the Lee Valley, Nelson. The largest grain is 2 mm x 1 mm (Photo: Eric...Longwood and Riwaka complexes are considered to be New Zealand representatives of this class (Challis, 1989;...podiform chromitites, as in the Dun Mountain Ophiolite Belt in New Zealand. 3. Ni-Cu and Ni magmatic sulphide...and Riwaka Complexes, and those shed from the Dun Mountain Ophiolite Belt. Placer deposits, formed by the |  | | Report (issue) | | NEW ZEALAND DEPARTMENT OF SCIENTIFIC AND INDUSTRIAL RESEARCH
NEW ZEALAND GEOLOGICAL SURVEY
125th ANNIVERSARY...1865 -1990
NEW ZEALAND GEOLOGICAL SURVEY BULLETIN 104
ISSN 0077-9628
Minerals of New Zealand
by
G. L....initials should be G.T., not G.L.
Lower Hutt, New Zealand
1990
I
I
Beach sand, alluvium,
âą terrace...Figure 1. Simplified geological sketch-map of New Zealand.
0
20 40
60
80 100 KM
l
INTRODUCTION
It...Morgan's "Minerals and
Mineral Substances of New Zealand" was published, as
NZ. Geological Survey bulletin |  | | Book | | UC-NRLF
NEW ZEALAND
of
department
Geological Survey Branch
(P.
G.
Morgan,
Director).
LIST...LIST
OF THE
MINERALS OF NEW ZEALAND,
BY
P. O.
Issued
MORGAN AND J. A. BARTRUM.
under the authority of...Z.
JOHN MACKAY, GOVERNMENT PRINTER
1913.
NEW ZEALAND-!,
n
Department
jfe
5j
Geological Survey Branch...Morgan,
Director).
LIST
OF THE
MINERALS OF NEW ZEALAND,
P.
Issued
O.
MORGAN AND J. A. BARTRUM.
under...Minerals
.
.
...
LIST
OF THE
MINERALS OF NEW ZEALAND
INTKODUCTION.
FOR many
of
is
in
years there |  | | Journal (article/letter/editorial) | | Example
from the Red Hills Ultramafic Massif, New
Zealand
Eric Stewart1*, William Lamb1, Julie Newman1...ultramafic massif, part
of the Dun Mountain ophiolite belt of New Zealand. In the east, the Red Hills massif...element
and cryptocrystalline metasomatism altered peridotite originally similar to the Two Tarns Harzburgite...is part of the
Dun Mountain Ophiolite Belt (Fig. 1a) of the South
Island, New Zealand. The crustal section...section of the Dun
Mountain Ophiolite belt is considered to have formed in
a forearc environment (Sano |  | Scott, J.M., Liu, J., Pearson, D.G., Harris, G.A., Czertowicz, T.A., Woodland, S.J., Riches, A.J.V., Luth, R.W. (2019) Continent stabilisation by lateral accretion of subduction zone-processed depleted mantle residues; insights from Zealandia. Earth and Planetary Science Letters, 507. 175-186 doi:10.1016/j.epsl.2018.11.039 | Journal (article/letter/editorial) | | Geology, University of Otago, Dunedin 9054, New Zealand
Department of Earth and Atmospheric Sciences...xxxx
Editor: F. Moynier
Keywords:
lithosphere
peridotite
Os isotopes
depleted mantle
lateral accretion... they too may â in part â be
compilations of peridotite shallowly melted and then laterally accreted...1. Introduction
The compositions of cratonic peridotite xenoliths have led to
models in which the mantle...The intrinsic buoyancy of depleted
lithospheric peridotite compared to the convecting mantle promotes long-term |  | | Journal (article/letter/editorial) | | Palaeozoic (Permian) Fossils at Clinton. The New
Zealand Journ. of Science and Technology VII, 362--364...MORGAN und J. A. BARTRUM (List of the Minerals of New Zealand, Wellington 1913) ftihren yon 57eu-SeeIand keinen..., 114.
*) ~V. 57. BENSO~, RecentAdvances in New Zealand Geology (Rep. 15. Meet.
Australas. Assoc. Adv...Adv. Sc. [1921], C.), 11--13.
5) Nach DUN liegt ein anderes Genus vor. Trotzdem kann es sich sehr
wohl...Arbeiten behandelt: C.T. TREO]=IYIANN,The Trias of New Zealand (Qu. gourn.
Geol. Soc. London 78 [1917], 165--246 |  | | Journal (article/letter/editorial) | | and of a typical unaitered dolerite dike and a peridotite of the area. The mineralogy of the rodingite...may be related to the serpentinization of the peridotite country rocks. Iurnolucrror.r An area of about...describecertain dike rocks from Roding River, Dun Mountain area, Nelson, New Zealand, consisting of grossular,and diallage...analysis (D) of a prehnite-zoisite aggregatefrom a New Zealand gabbro shows close similarities with that of...Ertnite-zoisiteaggregate in alteredgabbro,MacquarieIsland,New Zealand(Grange,1s27) Anal.: (alsoincludes F. T. Seelye |
|