18-662: Rotoiti may be: Places [ edit ] Lake Rotoiti (Bay of Plenty) , a lake in the Bay of Plenty area of New Zealand Rotoiti, Bay of Plenty , a locality on the shore of Lake Rotoiti Lake Rotoiti (Tasman) , a lake in the Tasman area of New Zealand Mount Rotoiti , a peak in the Frigate Range, Antarctica Rotoiti, the former name of Saint Arnaud, New Zealand Ships [ edit ] HMNZS Rotoiti ,
36-546: A list of Royal New Zealand Navy ships Rotoiti -class inshore patrol vessel , a class of ships of the Royal New Zealand Navy See also [ edit ] Rotoitidae , a family of parasitic wasps Rotoita basalis , a wasp in the family Rotoitidae Topics referred to by the same term [REDACTED] This disambiguation page lists articles associated with the title Rotoiti . If an internal link led you here, you may wish to change
54-496: A nearby vent in the Ōkataina Caldera that had a separate magma source and erupted Earthquake Flat breccia . Lake Rotorua Lake Rotorua ( Māori : Te Rotorua nui ā Kahumatamomoe ) is the second largest lake in the North Island of New Zealand by surface area, and covers 79.8 km . With a mean depth of only 10 metres it is considerably smaller than nearby Lake Tarawera in terms of volume of water. It
72-812: Is located within the Rotorua Caldera in the Bay of Plenty Region . Lake Rotorua is fed with water from a number of rivers and streams; some such as the Utuhina flow with a water temperature warmer than the lake due to the thermal activity in the Rotorua area. Conversely streams on the northern shore such as the Hamurana Spring and the Awahou stream flow crystal clear water that has a constant temperature of 10 degrees Celsius. Other notable tributaries include
90-520: Is the highest it has been in decades, and it is on track to meet targets set by the Program to meet community expectations. Lake Rotoiti has thermal hot-spring baths on the southern shore which are accessible by boat. Its joint drainage with Lake Rotorua through the Ohau Channel depends upon the sinking Tikitere graben which is also very geothermally active on the south eastern margins of
108-604: The Bay of Plenty region of New Zealand . It is the northwesternmost in a chain of lakes formed within the Okataina Caldera . The lake is close to the northern shore of its more famous neighbour, Lake Rotorua , and is connected to it via the Ohau Channel . It drains to the Kaituna River , which flows into the Bay of Plenty near Maketu . The full name of the lake is Te Rotoiti-kite-a-Īhenga , which in
126-616: The Māori language means "The Small Lake Discovered by Īhenga ", the Māori explorer also credited with discovering Lake Rotorua. Legend says that the lake was named as such because when Ihenga first saw it, he could only see a small part of it and thought the lake was a lot smaller. Since the 1960s, the quality of lake water has been negatively affected by inflows of nitrogen rich water from Lake Rotorua, agricultural run-off from surrounding farms and seepage from domestic septic tanks . The effects of this included an almost permanent algal bloom in
144-518: The Ngongotahā stream, famous for trout fishing. Lake Rotorua flows directly into Lake Rotoiti via the Ohau Channel at the north eastern corner of the lake. The urban development of Rotorua extends along the south portion of the lake shore. The lake was formed from the crater of a large volcano in the Taupō Volcanic Zone . Its last major eruption was about 240,000 years ago. After
162-485: The Rotoiti Caldera . As postulated, this caldera does not house the lake. The age of this large eruption of more than 100 cubic kilometres (24 cu mi) of magma was historically ill-defined due to several complexities and the literature gives a range from 40,000 years to 64,000 years ago with 47,400 ± 1500 years ago being recently quoted. What is not now challenged is that this was a paired eruption with
180-557: The Okere arm of the lake and choking lake weed growth in other still areas of the lake. A barrier to divert the nutrient rich waters of Lake Rotorua into the Kaituna River was completed in late 2008. The Bay of Plenty Regional Council is expected to see improvement in lake water quality within five years. The Rotorua Te Arawa Lakes Program reported in 2013 that the intervention has significantly improved water quality. Water quality
198-614: The Rotoiti eruption of the Ōkataina Caldera , with formation of a channel within the western lake floor of Lake Rotoiti and suspected after the Hauparu eruption through the Kaituna River Gorge. Several other lakes of volcanic origin are located nearby to the east, around the base of the active volcano Mount Tarawera and these also over time have varied in size or existence due to volcanic action. Mokoia Island , close to
SECTION 10
#1732798794160216-438: The centre of the lake, is a much later rhyolite dome compared to Ngongotahā. It is probably New Zealand's best-known lake island, and is closely associated with one of the best-known Māori legends, that of Hinemoa and Tutanekai . Is said that Hinemoa swam across the lake to her lover Tutanekai who lived on Mokoia Island. Owing to the geothermal activity around the lake (including still active geysers and hot mud pools),
234-523: The eruption, the magma chamber underneath the volcano collapsed. The circular depression left behind is the Rotorua Caldera , which is the site of the lake. The lake as shown in Figure 1, has had periods at multiple different lake levels since the caldera's Mamaku ignimbrite eruption, related to both volcanic activity and subsidence within the Taupō Rift . The lake all-time high occurred sometime after
252-587: The formation of the Ngongotahā Dome which records this on its flanks, and is now dated at 200,000 years. Previously this dome's eruption was assigned much closer to the time of the Mamaku ignimbrite eruption, so the lake maximum high stand was assumed to be more directly related to the caldera's formation. Breakout floods are suspected through the Hemo Gorge after the lake's maximum high stand, definitely after
270-516: The lake from Sulphur Point. Despite the large volume of water flowing through Lake Rotorua its shallow depth makes it very prone to discolouration, especially from sediment following windy weather. It is well used by fishermen, but less popular with watersports participants and swimmers. The Ohau Channel is navigable by boat and is also favoured by fly fishermen. The Ohau channel joins at the Mourea delta, an area with very low water levels. This area
288-514: The lake has a high sulphur content. This gives the lake's waters an unusual yellowish-green hue. In 2024, maps of the lake floor were published, showing the results of surveys carried out in 2016 and 2017. The maps reveal the course of an ancient river, now submerged, and thousands of pockmarks that probably result from the emission of gas from decomposition of organic material beneath the lake floor. The surveys also revealed significant geothermal activity extending around 1 km (0.62 mi) into
306-486: The lake. There appear to have been Rotoiti eruptive vents at the eastern end of the lake and although these are part of the Ōkataina Volcanic Centre they are believed to be in an area of collapse subsidence outside the north western margins of the Ōkataina Caldera itself. This region of the caldera was at one time termed the Haroharo Caldera , but has been renamed in the more standard major event fashion to
324-405: The link to point directly to the intended article. Retrieved from " https://en.wikipedia.org/w/index.php?title=Rotoiti&oldid=1089087814 " Category : Disambiguation pages Hidden categories: Short description is different from Wikidata All article disambiguation pages All disambiguation pages Lake Rotoiti (Bay of Plenty) Lake Rotoiti is a lake in
#159840