Virginia Gail Toy, Rupert Sutherland, John Townend, Michael J. Allen, Leeza Becroft, Austin Boles, Carolyn Boulton, Brett Carpenter, Alan Cooper, Simon C. Cox, Christopher Daube, D. R. Faulkner, Angela Halfpenny, Naoki Kato, Stephen Keys, Martina Kirilova, Yusuke Kometani, Timothy Little, Elisabetta Mariani, Benjamin Melosh, Catriona D. Menzies, Luiz Morales, Chance Morgan, Hiroshi Mori, Andre Niemeijer, Richard Norris, David Prior, Katrina Sauer, Anja M. Schleicher, Norio Shigematsu, Damon A. H. Teagle, Harold Tobin, Robert Valdez, Jack Williams, Samantha Yeo, Laura-May Baratin, Nicolas Barth, Adrian Benson, Carolin Boese, Bernard Célérier, Calum J. Chamberlain, Ronald Conze, Jamie Coussens, Lisa Craw, Mai-Linh Doan, Jennifer Eccles, Jason Grieve, Julia Grochowski, Anton Gulley, Jamie Howarth, Katrina Jacobs, Lucie Janku-Capova, Tamara Jeppson, Robert Langridge, Deirdre Mallyon, Ray Marx, Cécile Massiot, Loren Mathewson, Josephine Moore, Osamu Nishikawa, Brent Pooley, Alex Pyne, Martha K. Savage, Doug Schmitt, Sam Taylor-Offord, Phaedra Upton, Konrad C. Weaver, Thomas Wiersberg, Martin Zimmer
- During the second phase of the Alpine Fault, Deep Fault Drilling Project (DFDP) in the Whataroa River, South Westland, New Zealand, bedrock was encountered in the DFDP-2B borehole from 238.5–893.2 m Measured Depth (MD). Continuous sampling and meso- to microscale characterisation of whole rock cuttings established that, in sequence, the borehole sampled amphibolite facies, Torlesse Composite Terrane-derived schists, protomylonites and mylonites, terminating 200–400 m above an Alpine Fault Principal Slip Zone (PSZ) with a maximum dip of 62°. The most diagnostic structural features of increasing PSZ proximity were the occurrence of shear bands and reduction in mean quartz grain sizes. A change in composition to greater mica:quartz + feldspar, most markedly below c. 700 m MD, is inferred to result from either heterogeneous sampling or a change in lithology related to alteration. Major oxide variations suggest the fault-proximal Alpine Fault alteration zone, as previously defined in DFDP-1 core, was not sampled.
MetadatenAuthor details: | Virginia Gail ToyORCiD, Rupert SutherlandORCiD, John TownendORCiD, Michael J. AllenORCiD, Leeza Becroft, Austin BolesORCiD, Carolyn BoultonORCiD, Brett CarpenterORCiD, Alan Cooper, Simon C. CoxORCiD, Christopher Daube, D. R. FaulknerORCiDGND, Angela HalfpennyORCiD, Naoki Kato, Stephen Keys, Martina KirilovaORCiD, Yusuke Kometani, Timothy LittleORCiD, Elisabetta Mariani, Benjamin MeloshORCiD, Catriona D. MenziesORCiD, Luiz MoralesORCiD, Chance Morgan, Hiroshi MoriORCiD, Andre NiemeijerORCiD, Richard Norris, David PriorORCiD, Katrina SauerORCiD, Anja M. SchleicherORCiDGND, Norio ShigematsuORCiD, Damon A. H. TeagleORCiD, Harold Tobin, Robert ValdezORCiD, Jack WilliamsORCiD, Samantha Yeo, Laura-May BaratinORCiD, Nicolas BarthORCiD, Adrian BensonORCiD, Carolin BoeseORCiD, Bernard Célérier, Calum J. ChamberlainORCiD, Ronald ConzeORCiD, Jamie Coussens, Lisa CrawORCiD, Mai-Linh DoanORCiD, Jennifer EcclesORCiD, Jason Grieve, Julia GrochowskiORCiD, Anton GulleyORCiD, Jamie HowarthORCiD, Katrina Jacobs, Lucie Janku-CapovaORCiD, Tamara JeppsonORCiD, Robert LangridgeORCiD, Deirdre Mallyon, Ray Marx, Cécile MassiotORCiD, Loren Mathewson, Josephine Moore, Osamu NishikawaORCiD, Brent Pooley, Alex Pyne, Martha K. SavageORCiD, Doug SchmittORCiD, Sam Taylor-OffordORCiD, Phaedra UptonORCiD, Konrad C. WeaverORCiD, Thomas WiersbergORCiD, Martin ZimmerORCiD |
---|
DOI: | https://doi.org/10.1080/00288306.2017.1375533 |
---|
ISSN: | 0028-8306 |
---|
ISSN: | 1175-8791 |
---|
Title of parent work (English): | New Zealand journal of geology and geophysics : an international journal of the geoscience of New Zealand, the Pacific Rim, and Antarctica ; NZJG |
---|
Publisher: | Taylor & Francis |
---|
Place of publishing: | Abingdon |
---|
Publication type: | Article |
---|
Language: | English |
---|
Date of first publication: | 2017/10/17 |
---|
Publication year: | 2017 |
---|
Creating corporation: | DFDP-2 Sci Team |
---|
Release date: | 2022/09/16 |
---|
Tag: | Alpine Fault; New Zealand; cataclasite; mylonite; scientific drilling |
---|
Volume: | 60 |
---|
Issue: | 4 |
---|
Number of pages: | 22 |
---|
First page: | 497 |
---|
Last Page: | 518 |
---|
Organizational units: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Geowissenschaften |
---|
DDC classification: | 5 Naturwissenschaften und Mathematik / 55 Geowissenschaften, Geologie / 550 Geowissenschaften |
---|
Peer review: | Referiert |
---|
Institution name at the time of the publication: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Erd- und Umweltwissenschaften |
---|