alpine fault map


alpine fault map

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Thanks for rating! See below for contact information to organise a visit. KML (Google Earth-type) files and GIS shape files are also available for download from the site. Motion on the fault within its central portion is … Arrows mark a point near the base of the scarp. This fault has ruptured four times in the past 900 years, each time producing an earthquake of about magnitude 8. In terms of the way the previous material has been set out in this resource, and because there is so much available about the Alpine Fault, it has been decided to treat material about the Alpine Fault separately as an appendix. Well … Menu Contact Search The Alpine Fault crosses many West Coast townships, tourist areas, and key infrastructure so there is fear attached to the impact of a fault rupture in these areas." New research from Victoria University of Wellington could prompt a shift in thinking about the South Island’s Alpine Fault.. Alpine Fault. The Alpine Fault The Alpine Fault, marked here by the yellow line, stretches nearly the entire length of Te Waipounamu, the South Island of Aotearoa New Zealand. Alpine Fault damage zone Qfl fluvial channel and overbank deposits alluvial fan deposits Quaternary Qaf Tertiary Likely Mezosoic Paleozoic Lineament A B Figure 1 – A) Geologic Map of the Kaipo Slips B) Geologic cross-section of bedrock units exposed in the Kaipo Slips. The Alpine Fault is overdue for an earthquake that could reshape the South Island, scientists say. They have been pushed up by many and continued earthquakes occurring on the fault. The Alpine Fault is a geological fault, specifically a right-lateral strike-slip fault, that runs almost the entire length of New Zealand’s South Island. Whilst it ruptures mainly in a sideways direction, some uplift on its eastern side has given rise to the Southern Alps. The Alpine Fault at Inchbonnie – Hohonus and Taramakau River looking east [L.Homer, GNS] M Trayes, Natural Hazards Analyst West Coast Regional Council February 20 12. Alpine Fault Tours, Whataroa: See 24 reviews, articles, and 47 photos of Alpine Fault Tours, ranked No.3 on Tripadvisor among 4 attractions in Whataroa. David B wrote a review Feb 2020. The Alpine Fault is a geological fault, known as a right-lateral strike-slip fault, that runs almost the entire length of New Zealand's South Island. The Alpine Fault extends as a nearly straight line through the length of the South Island. Here you will find the GPS coordinates and the longitude and latitude of Alpine. An online map of United States Quaternary faults (faults that have been active in the last 1.6 million years) is available via the Quaternary Fault and Fold Database. The Marlborough Fault System is a major sequence of faults in the upper South Island. It is the line along which the Australian and Pacific tectonic plates are being pushed together. This video describes the Deep Fault Drilling Project DFDP: https://www.youtube.com/watch?v=n9ZPq5FRmnE. J.Thomson / GNS.Science, The surface trace of the Alpine Fault and an experimental concrete wall. The Alpine Fault marks the boundary of the Pacific and Australian Plates. The faults within this system head southwards and converge to form the Alpine Fault, which carries most of the plate boundary strain in the region. However ... such as the Dead Sea Transform in the Middle East or the Alpine Fault in New Zealand. How often does the Alpine Fault rupture? The Alpine Fault cuts a fine line hundreds of kilometres through the western flank of the South Island. Helpful. However, most of the motion on the fault is strike-slip (side to side), with the Tasman district and West Coast moving North and Canterbury and Otagomoving South. Through the South … While the Alpine fault does not impact large populated areas, the other major strike-slip faults do, including the San Andreas in California, the Anatolian in Turkey and faults in China and Central Asia. Map of Zealandia Continent. Most of the movement along the fault is horizontal (sideways), but there is also a vertical component. This is a commercial tour run by the local landowner, and visits must be organised in advance. The Alpine Fault is called a strike slip or transform fault. It forms a transform boundary between the Pacific Plate and the … The fault itself has been active for about 20 million years, but the gravels through which it passes at this locality were deposited towards the end of the last ice age about 15 to 16 thousand years ago. QMAP mapping data is predominant at the northeast and southwest ends of the fault, while Otago University mapping is the predominant source from Hokitika to Haast. A fault zone is a cluster of parallel faults. The Alpine Fault cuts obliquely across the South Island, forming the western edge of … It forms a transform boundary between the Pacific Plate and the Indo-Australian Plate. The faults within this system head southwards and converge to form the Alpine Fault, which carries most of the plate boundary strain in the region. It is also a very active fault, … A wall has been built across the fault scarp to check for movement. Alpine Fault movement . 6. slip vector is oriented approximately 20 to the trace of the fault, resulting in components of 35.5 mm/yr parallel and 10 mm/yr perpendicular to the Alpine Fault. ALPINE FAULT: "An earthquake on the Alpine Fault in the near future would not be a big surprise." The Alpine Fault is a geological fault, specifically a right-lateral strike-slip fault, that runs almost the entire length of New Zealand’s South Island. Normally no particular hazard unless there is an Alpine Fault rupture! It is shown on geologic maps as a black line with either a block pattern on the downthrown side, or the letters U/D showing the upthrown and downthrown sides. GPS-coordinates of Alpine. Alpine Fault identifies earthquakes in the years 1717, 1620, and 1430, with estimated moment magnitudes of 7.9±0.3, 7.6±0.3, and 7.9±0.4, respectively (Sutherland et al., 2007). It is the line along which the Australian and Pacific tectonic plates are being pushed together. At its northern end it divides into several branches that are known as the Marlborough Fault System. Athy 19 contributions 4 helpful votes. The bus trip there and back also good fun. Pacific plate on left, Australian Plate on right. Map of the northern end of the Alpine Fault and Marlborough Fault System. There are also several important faults offshore to the east of Marlborough. The Alpine Fault Trace runs from lower left towards the hill, J.Thomson / GNS.Science The northern section of the Alpine Fault runs through this area. Alpine Fault The Alpine Fault is spectacularly marked out on satellite images by the western edge of the Southern Alps snowline. The Alpine Fault is a geological fault, known as a right-lateral strike-slip fault, that runs almost the entire length of New Zealand's South Island. Most of the movement along the fault is horizontal (sideways), but there is also a vertical component. … When you look at the outcrop, the most striking thing at first sight is the colour of the rock material along the fault. Map of South Island showing Alpine Fault, distribution of major Late Quaternary faults (somewhat generalised) and current plate vector (after DeMets et al., 1994). There were 4 of us on this tour and all enjoyed learning more about the geology of such an impressive landscape. South Island Faults. The red line on this map shows our plate boundary (see Module 2). You can actually stand with each foot on a separate tectonic plate! A wall has been built across the fault scarp to check for movement. The Hope Fault is an active dextral (right lateral) strike-slip fault in the northeastern part of South Island, New Zealand.It forms part of the Marlborough Fault System, which accommodates the transfer of displacement along the oblique convergent boundary between the Indo-Australian Plate and Pacific Plate, from the transform Alpine Fault to the Hikurangi Trench subduction zone. The country lies on the Ring of Fire which means it is a hotspot for earthquakes. This demonstration allows you to go on a virtual field trip along the Alpine Fault and see some of the key outcrops. Date of experience: November 2020. Contour line interval is 0.5 m. Most of New Zealand's major faults are similar in this respect. The alpine fault earthquake will alter tectonic stress distribution, and other faultlines may rupture in the days or years following it. Elizabeth is so … Ground shaking will occur from ruptures on these fault lines. In places, such as above Jerry River (photograph above), it is marked by other geological features such as shutter ridges and pull-apart basins, or laterally displaces geographical features such as glacier moraines, sometimes by kilometres. … The Alpine Fault runs northeast from the northern side of the entrance to Milford Sound, along the western side of the Southern Alps for about 800 … How often does the Alpine Fault rupture? Elizabeth, our tour guide, was very knowledgeable and enthusiastic showing off this area of NZ and explaining how the tectonic plates work. Because the Alpine fault begins so cleanly, Furlong believes it can tell us something about strike-slip faults in general. This greenish grey clay is known as cataclasite. UTM coordinates … Scientists have revealed new insights into what's piling pressure on New Zealand's big-risk Alpine Fault – and whether the past decade's quakes have added to its squeeze. As you can see it has not been damaged due to any fault movement or gradual creep (as of April 2016! Elisabeth, your guide, has a good knowledge of the Alpine Fault, and to be able to straddle 2 tectonic plates was a real moment to remember. Scientists have revealed new insights into what's piling pressure on New Zealand's big-risk Alpine Fault – and whether the past decade's quakes have added to its squeeze. The Alpine Fault. Fault ruptures (earthquakes) have displaced river terraces that cross the fault. These faults take up some of the total displacement caused by plate collision, so the continuation of the … 1990) to 071 o at a rate of 39 mm yr-1 (De Mets et. The Alpine Fault extends as a nearly straight line through the length of the South Island. Here you can get right up close to the plate boundary fault that runs the length of the South Island. Spent a really interesting and completely unexpected morning on a private tour of the Alpine fault line. The northern section of the Alpine Fault runs through this area. Alpine Fault which give us some measure of what we might be in for when the predicted large event occurs. It forms the sharp line separating the snow-covered Southern Alps in the east from the low coastal plain bordering the … Reverse and … The Alpine Fault is overdue for an earthquake that could reshape the South Island, scientists say. Many of these are documented in the literature and references to papers are presented in the descriptions. The effect of fluid differentials on an Alpine Fault earthquake is obviously significant but presently unquantified. Movement occurs during very large earthquakes approximately every 300 years, with the last one happening 300 years ago in 1717AD. Dip-slip faults Normal faults in Spain, between which … Read more. Turning inland, the Alpine Fault runs to a point near the Lewis Pass, travels northwards then frays into four main faults that extend to the east coast. Convergence on the plate boundary along the Alpine Fault ranges from a vector trending 084° at a rate of 45 mm yr-1 (Norris et. The paper speculated that since the country west of the fault stays flat, and the country east of the fault rises steeply to alpine heights, the fluid pressure difference across the alpine fault at depth would quickly rise to a hydraulic head of 1000 metres, and beyond. Movement along this fault has uplifted the Southern Alps and helped shape the South Island landscape we know today. Given rise to the Southern Alps which are close by to the east of where you at... World 's major faults are similar in this respect western edge of the material. You to go on a separate database Search function, including the Wellington Fault, Wellington,... Occurring on the geologic map with triangular teeth pointing toward the upthrown side the... To the surface trace of the South Island most striking thing at first sight is the line along the. 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