northland volcanic field

Roy Soc New Zealand Bul, 23, 48-63. Sketch map of Northland, New Zealand, showing the location ... As new geological relationships have been discovered new names have been proposed and others are made obsolete. Kaikohe-Bay of Islands volcanic field Mainly basaltic, but includes two large rhyolite domes (Parakiore and Hikurangi). Northland Region; Far North District ⓘ Northland Volcanic Province; Ashcroft, J. View large map Albany Store Open 7 Days 9am-5pm Auckland, and Northland volcanic fields). Scoria cone in the Kaikohe-Bay of Islands centre. Rangitoto is the most recent of these at ~500 year BP and may mark a change in the behaviour of the field as it is the largest by an order of magnitude and is unusual in that it erupted magmas of alkalic then subalkalic basaltic composition in discrete events separated by ≤50 years. A team of international scientists believe they have found the answers to the mysteries of Earth's last polar reversal in the tree rings of an ancient kauri. Northland family holidays. Allen SR, 'The Parnell Grit beds revisited: are they all the products of sector collapse of western subaerial volcanoes of the Northland Volcanic Arc?', New Zealand Journal of Geology and Geophysics, 47, (3) pp. Data from the Northland volcanic field (Huang et al. ABSTRACT The Miocene Waitemata Basin was deposited on a moving base provided by the Northland Allochthon, which was emplaced in the Late Oligocene, as a new convergent plate boundary was established in northern New Zealand. ago, and very . The shape of a Northland or Auckland basalt volcano depends on the styles of eruption that formed it. Northland volcanic arc, 1124 = Ocean Drilling Program (ODP) Leg 181 deep-ocean site 1124 from Carter et al. Report was prepared as part of the DEVORA project, Theme 1, Objective 1. MINOT, N.D. (AP) — A desire to give patients a more personal style of health care and sometimes a broader range of services has led to a growing number of independent clinics operated by mid . field may have been re-activated in late Quaternary times (up to 700,000 years ago) and could be considered as still active. AB - This paper discusses new results from the Northland Ophiolite in northern New Zealand that indicate that it formed in a supra-subduction zone setting, c. 26-29 m.y. At that stage, the margin was therefore oriented northwest-southeast, a determination supported by the parallel northwest-southeast trend of the early Miocene Northland volcanic arc (Herzer 1995). The need to define default volcanic source and hazard models for "data-poor" or "first-time" volcanoes: A relevant New Zealand example is the Northland volcanic field, where very little is known about the ages, eruptive volumes, and recurrence behavior of the volcanic sources. The Auckland Volcanic Field, some 400km from the edge of the Indian-Australian plate, is considered to be unrelated to the volcanic activity which occurs at a plate boundary. has produced two volcanic fields containing alkalic, transitional, and tholeiitic basalt. Their latest activity, around 1300-1800 years ago, created four scoria cones at Te Puke (near Paihia). Islands, and Whangarei volcanic fields have received less attention, although they could also be a future hazard to local and regional communities. From c. 10 Ma onwards intraplate volcanism developed in Northland (Smith, 1989;Smith et al., 1993) and in late Pliocene to Quaternary times small basaltic volcanic fields developed in the Auckland . The Hauraki goldfield contains approximately 50 adularia-sericite epithermal Au-Ag deposits that occur in a north-south trending belt in the Coromandel volcanic zone, which follows Within the Northland Volcanic Province, volcanic activity occurred between 9.7 Ma and 13 ka (Smith et al. This table is based on the 2014 New Zeal Move right into a perfectly priced plum, sitting in semi rural Maungakaramea. White island and Mayor Island are . The Northland volcanic fields lie between 330 and 400 km northwest of the Taupo volcanic zone. of the lithosphere (Spörli and Eastwood, 1997). By Dean Austin. The Auckland Volcanic Field, some 400km from the edge of the Indian-Australian plate, is considered to be unrelated to the volcanic activity which occurs at a plate boundary. The fiel word k was carried out durin A.U.F.Cg the Scientifi. [10] The timing of the cessation of subduction in Northland is uncertain, but generally placed at post-15 Ma on the basis of K-Ar ages [Hayward et al., 2001].The post-10 Ma magmatic history of Northland (Australian Plate) is characterized by intraplate terrestrial basaltic fields. The Waitemata Group formed following major Mid-to Upper Oligocene block faulting in northern New Zealand. Igneous geology of the Tokatoka district, Northland. An unusual andesitic suite from the Miocene volcanic arc in Northland, New Zealand, comprises pyroxene andesite and garnet-bearing hornblendepyroxene, hornblende and biotitehornblende andesites. The Auckland volcanic field (2.69 Ma-500 a) consist of a series of volcanic fields that decrease in age towards the north (Briggs et al. 7. cinder cones 397 m / 1,302 ft. North Island, New Zealand, -35.75°S / 174.27°E. Scientists predict a 3km radius will be devastated by thick ash falls and lava flows when Auckland . Current status: (probably) extinct (0 out of 5) Whangarei volcano (named after the nearby town of Whangarei) is a group of cinder cones and lava flows. The Northland volcanic fields lie between 330 and 400 km northwest of the Taupo volcanic zone. Volcanoes. the Northland volcanic field are essentially the same as for the published studies. Northland Volcanic Field Active in the last 10 million years, with the last eruption 60,000 years ago. In contrast to the voluminous rhyolitic and andesitic volcanism found there, volcanism in Northland over the last 2.3 m.y. We've got 6 properties in Maungakaramea from $2,500,000 for you | Mitula Homes. Northland volcanic field (10 million years-60,000) Auckland Volcanic Field, 48 small basaltic volcanoes( 140,000 to 600) Coromandel and Hauraki Volcanic Region(18-4 million) Waikato basaltic and andesitic strato-volcanoes(2.7-1.6 million) Egmont volcanoes (1.75 million) . All the cones older than 2 million years have eroded away, leaving plateaus from Ōkaihau to Kerikeri and north to Whangaroa.In the southern part of the field, around 12 small basaltic scoria cones, and a rhyolite dome erupted in the last 500,000 years . The Northland Volcanic Arc boasted 10 volcanoes . . 2). Northland is the northern most region in New Zealand, covering 80% of the Northland peninsular which extends north from Auckland. NZ$ 750,000. 1 Distribution of intraplate volcanic fields in northern North Island. On the Raukumara Peninsula, the faults and folds associated with . Northland Volcanic Field Active in the last 10 million years, with the last eruption 60,000 years ago. Citations: Scopus - 10 Web of Science - 9 The largest population centre is Whangarei at 57,700, while Kerikeri a little further north is also a major population centre. [35] In New Caledonia, Late Cretaceous to Paleocene mafic oceanic rocks form a 400 km long complex, referred to as the Poya Terrane [Cluzel et al., 1994], underneath the ultramafic ophiolite. As a sodium-rich trachy basalt, it fulfills the condition Na 2 O - 2 ≥ K 2 O. Geochemistry of the Early Miocene volcanic succession of Northland, New Zealand, and implications for the evolution of subduction in the Southwest Pacific. Field Trip Saturday 24 March 11am onwards optional and location to be confirmed Geology around Auckland. The Auckland volcanic field is a Quaternary monogenetic basaltic field of 50 volcanoes. Not all these changes have been universally adopted. The landscape features remnants of lava flows and cones. It consisted of a central flysch basin 130 km by 60 km, bounded to the north and south by basement horst on which shelf facies accumulated, to the west by an active andesitic/basaltic ridge, and to the east by a high basement ridge/active andesitic arc. Results indicated that they were actually created from subduction and more closely related to the Early Miocene-aged Northland Volcanic Arc. 509-524. (2004). The Kaikohe-Bay of Islands volcanic field is in the Northland Region of New Zealand.Eruptions have occurred over the last 10 million years. Properties for sale in Maungakaramea. 251 tangihua road maungakaramea whangarei whangarei district northland volcanic block with options. In contrast to the voluminous rhyolitic and andesitic volcanism found there, volcanism in Northland over the last 2.3 m.y. Two main centres around Whangarei and Bay of Islands respectively. It's located in Maungakaramea, Whangarei District, Northland. (Field et al. The type of volcanic activity which has created the Auckland volcanic field is referred to as monogenetic which means that each time there has been an eruption it has occurred at a new location and that each eruption is the result of a single batch of magma which rises from its source in the mantle about 100km beneath the city. 1).In both the KBI and WHP fields, volcanic activity began at ∼10 Ma and it has continued through to . Fig. 1989, 1994). Volcanism began in the Northland area around 2.3 million years ago, with its most recent eruption between 1,300 - 1,800 years ago. .TOUR ONLINE: Sitting tall and proud and capturing the expansive views across Kensington Park sports fields, this functional two level townhouse . Hawaiite is chemically defined in the TAS field S1. The other volcanic hazard for Northland to consider is the effects of ash fall from a distant Field trip 5 Part 2 Bushwalk on a Miocene volcano 47 Fred Brook Field trip 6 Geothermal Northland 49 Pat Browne, Stuart Simmons, Kathy Campbell, Wendy Hampton and Dion Pastars Field trip 7 A taste of Northland geology 59 Bruce Hayward and Ian Smith Field trip 8 Northland from the bottom up: P/Tr boundary to allochthon 79 Bernhard Spörli and . The Northland intraplate province comprises several fields of mainly basaltic rocks on the eastern side of the Northland Peninsula. All the cones older than 2 million years have eroded away, leaving plateaus from Ōkaihau to Kerikeri and north to Whangaroa.In the southern part of the field, around 12 small basaltic scoria cones, and a rhyolite dome erupted in the last 500,000 years . The Kerikeri Volcanics: a basalt-pantellerite association in Northland. Obduction of the Northland Ophiolite initiated subduction and volcanism resulting in the development of the Northland volcanic arc during the early Miocene. (1993), based on whole- Late Cenozoic Volcanism in New Zealand. Submarine volcano: unknown -65 30 ° 02 ′ 09 ″ S, 178 ° 42 ′ 45 ″ W. Healy: Kermadec Islands: Submarine volcano: 1360 ± 75 years -980 35 ° 00 ′ 13 ″ S, 178 ° 58 ′ 21 ″ E: Kaikohe Bay of Islands volcanic field: North island: Northland . 1997) demonstrate that both faults . Assisted professors organize the field camp class. The initial phases of large-scale silicic and bimodal volcanism within an active Miocene arc (Coromandel Volcanic Zone, CVZ) are preserved on several small islands in northern New Zealand. Garnet crystals occur as 110mm single crystals or more commonly as two or more annealed crystals and as garnetite lenses. The Northland region contains two recently active volcanic fields, one around Whangarei, and the Kaikohe-Bay of Islands volcanic field. ISSN 0028-8306 (2004) [Refereed Article] DOI: 10.1080/00288306.2004.9515073. That history is graphically portrayed in the contemporary landscape, particularly in the low light levels of early and late in the day. Instead, the volcanoes are spawned from what geologists call a hot spot"—an extra-hot zone about 100km below the city, near the boundary of lithosphere and . Basement greywacke rocks, coal, limestone and the displaced oceanic rocks of Northland. 9.1 Distribution and age of the basalt volcanic fields in northern New Zealand. These 2/45 Kensington Avenue, Kensington. Field observations show, that the outflows along the fracture zone are geomorphologically separated from the wastewater outlet with 33.3 ∘ C, as well as the outflow of uncertain origin with 25.2 ∘ C. The warm (yellow) areas in the east of the thermal map represent the margins of the tidal seawater level during low tide (Fig. Major- and trace-element compositions classify the rocks as high-K, calc-alkaline, silicic lavas which have some of the low-ion lithophile element and high-field-strength element characteristics of . Petrographic variation is small and augite-, olivine-, and ophitic basalts are recognised. Volcano investigations from Wairakei are frequently carried out in conjunction with staff of other Crown Research Institutes, regional councils, and universities. Academia.edu is a platform for academics to share research papers. Oligocene-Miocene tectonic evolution of the South Fiji Basin and Northland Plateau, SW Pacific Ocean: Evidence from petrology and dating of dredged rocks . This subduction produced the Loyalty, Three Kings (in parts), and possibly Northland Plateau volcanic arcs. To further differentiate it from other volcanic rocks, the MgO content can be used, which in Hawaiite is between 4 and 8 percent by weight. INTRODUCTION Hayward7'8 and MacFarlan9 described the coastal geology from Hokianga South Head to the Waipou Rive mouthr a . 7. Numerous basaltic scoria cones and lava flows. Mainly basaltic, but includes two large rhyolite domes (Parakiore and Hikurangi). Kaikohe is a town in the Far North District of New Zealand, situated on State Highway 12 about 260 km from Auckland.It is the largest inland town and highest community above sea level in the Northland Region.With a population of over 4000 people it is a shopping and service centre for an extensive farming district and is sometimes referred to as "the hub of the north". Taranaki to the west is considered dormant. Churchhill Avenue, Sandy Bay, Hobart TAS 7005 Private Bag 51, Hobart TAS 7001 T: +61 3 6226 2999 Townhouse for sale in Whangārei. . Have to make an affordable lifestyle choice situated 25km from mau Family travel and kids friendly holidays. This is the far southern extent of the field. Distribution of Okete lavas and tuffs was described by Briggs (1983), and Sanders (1994) described in detail ultramafic and mafic xenoliths found in them. The Northland Region comprises the Far North, Kaipara and Whangarei Districts. Spectacular examples of the resulting structures exposed on eastern . Northland. Instead, the volcanoes are spawned from what geologists call a hot spot"—an extra-hot zone about 100km below the city, near the boundary of lithosphere and . Price on request. PHONE: (09) 525 3142 Press 2 343 Albany Highway Albany Auckland 0632 . volcanic field 388 m / 1,273 ft North Island, New Zealand, -35.3°S / 173.9°E Current status: normal or dormant (1 out of 5) Kaikohe-Bay of Islands volcano is a volcanic field at the upper end of the Northland Peninsula about 190 km NNW of Auckland. The 20 metre-long kauri log could map . A subduction-related volcanic belt became active to the west of the current land in Northland in Miocene times (23 Ma), and gradually moved south down to Taranaki.It produced mainly andesitic stratovolcanoes.Most of these volcanoes have been eroded, but remnants form the Waipoua Plateau (basaltic, 19-18 Ma), and Waitākere Ranges (andesitic, 22-16 Ma). Fast-tracking resource consent for a new water storage facility in Kaikohe will give a long term boost to the c . The basin experienced complex interaction between tectonic and gravity‐driven shallow deformation. Their age is not well known, and could be as between less than 10,000 and up to about 30,000 . Clock. 2 minutes to read. Miocene west Northland volcanic arc. The Kerikeri Volcanic Group is a Late Miocene- to Quaternary-aged volcanic group that includes a number of monogenetic (single eruption) basaltic volcanoes across Northland, with an isolated flow remnant outcropping in Mangawhai. It's located in Kensington, Three Mile Bush, Whangārei, Whangarei District, Northland. However, the volcanic fields in the Northland Volcanic Province show no younging trends and hence must have discrete sources from those of Auckland. has produced two volcanic fields containing alkalic, transitional, and tholeiitic basalt. the Northland Allochthon. A chronologic framework for the past activity of the Northland fields has been established by Smith et al. 59 Ma (Briggs et al., 1994) and is distinct from the younger Auckland Volcanic Field to the north.It consists of eroded basaltic lava flows, scoria cones, and tuff deposits, produced from . Whangarei volcano. The Kaikohe-Bay of Islands volcanic field is in the Northland Region of New Zealand.Eruptions have occurred over the last 10 million years. This comfortable home includes such features as Acacia. Th presene papet describer s the pre-Pleistocene geology of the Maunganu Bluf areaf ,i situated 15 km south of Kawerua. Lecture 2 Saturday 24 March 9am - 11am at Selwyn Community Education Waitemata sandstones and the 20 million year old Northland Volcanic Arc. The Poya Terrane is a peel-off mélange, i.e . 2000)-a 10 Ma volcanic field 150-250 km north of the AVF-are more depleted and tend towards MORB-like compositions despite showing similar 87 . GeoNet volcano monitoring includes the Kermadec Islands, Auckland Volcanic Field, Northland volcanic fields Taupo Volcanic Zone (White Island, Okataina, Maroa, Rotorua, Taupo . Auckland Volcanic Field IESE Technical Report 1-2009.01 March 2009 Synthesis of Existing Structural Data for the Auckland Volcanic Field Marion Irwin. Major and trace . Two main centres around Whangarei and Bay of Islands respectively. These are divided on the basis of major and trace elements into the Kaikohe-Bay of Islands (KBI) and the Whangarei-Puhipuhi (WHP) field (Ashcroft, 1986; Fig. 29 Jun, 2000 08:24 PM. Eruption hazards depend on the volcano and eruption style, and may include explosions, ballistics (flying rocks), pyroclastic density currents (fast moving hot ash clouds), lava flows, lava domes, landslides, ash, volcanic gases, lightning, lahars (mudflows), tsunami, and/or earthquakes. An eruption from either of these Northland volcanic fields is likely to produce lava flows, scoria and ash fall. From c. 10 Ma onwards intraplate volcanism developed in Northland (Smith, 1989; Smith et al., 1993) and in late Pliocene to Quaternary times small basaltic volcanic fields developed in the Auckland area (Briggs et al., 1989, 1990; Cook et al., 2005); the AVF is the most recent of these. This study examines the depositional process and characteristics of deposits of large‐scale experimental debris flows (to 15 m 3) composed of mixtures of gravel (to 32 mm), sand, and mud.The experiments were performed using a 95‐m‐long, 2‐m‐wide debris‐flow flume that slopes 31°. All the samples from the Northland volcanic field were hand samples, which were cut into cylinders with a di-ameter and length of about 25 mm for the magnetic measurements. The volcanic field is an area of very rich historical activity, with abundant pa sites (including upon 3 of the 4 ONL sites), terraces, stonefields and early European agriculture. By Philippa Black. Maungakaramea, 34 Tangihua Road WR38782. Its size depends on the volume of magma expelled and duration of the eruptions. Albany. (1986). The andesitic rocks also contain enclaves of high-MgO pyroxenite, hornblendite . An eruption may occur at any level, and levels may not move in sequence as activity can change rapidly. Miocene Manukau volcanic complex, Northland, New Zealand S. R. Allen B. W. Hayward E. J. Mathews Centre for Ore Deposit Research Geomarine Research Geoscience Australia and School of Earth Sciences 49 Swainston Rd, P.0 Box 378 University of Tasmania St Johns, Auckland Symonston, ACT 2609 GPO Box 252-79, Hobart New Zealand Australia Northland includes the Kaikohe-Bay of Islands, Puhipuhi and Whangarei volcanic centres. Search New Zealand's largest database of properties. Separately, there are the Northland volcanic fields (extinct) and that of the Coromandel Peninsula - also extinct. Travel with the kids, family activities and accommodation, Whangarei, Russell, Paihia. The need to define default volcanic source and hazard models for "data-poor" or "first-time" volcanoes: A relevant New Zealand example is the Northland volcanic field, where very little is known about the ages, eruptive volumes, and recurrence behavior of the volcanic sources. Black, P. M. (1967). 1993). It was the youngest of eight such basalt volcanic fields that have erupted in Northland, Auckland and Coromandel over the past 10 million years. City sits on volcanic timebomb. This is a list of the units into which the rock succession of New Zealand is formally divided. Its weight fraction of SiO 2 is between 45 and 52%, the weight fraction of the sum of Na 2 O and K 2 O between 5 and 7.3%. Okete units were erupted from at least 30 volcanic vents, locations of which have been observed to be controlled along northerly and northeasteriv Two to four specimens were
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