New Zealand Journal of Geology and Geophysics最新文献_第4页

Basanite cobbles in Pleistocene sediments in Central Otago and their implications for intraplate volcanism and Clutha River paleo-drainage 奥塔哥中部更新世沉积物中的蓝晶石鹅卵石及其对板内火山活动和Clutha河古水系的影响

IF 2.2 4区地球科学

New Zealand Journal of Geology and Geophysics Pub Date : 2023-06-15 DOI: 10.1080/00288306.2023.2224579

J. Scott, A. Cooper, D. Craw, P. L. le Roux, H. Dalton, M. Palmer

引用次数: 1

Tectonic subsidence and uplift within Canterbury Basin, South Island, New Zealand 新西兰南岛坎特伯雷盆地的构造沉降和隆起

IF 2.2 4区地球科学

New Zealand Journal of Geology and Geophysics Pub Date : 2023-06-07 DOI: 10.1080/00288306.2023.2214368

K. Dvořák, M. Kominz, M. Crundwell

引用次数: 0

Composition and Miocene deformation of the lithospheric mantle adjacent to the Marlborough Fault System in North Canterbury 北坎特伯雷Marlborough断层系附近岩石圈地幔的组成和中新世变形

IF 2.2 4区地球科学

New Zealand Journal of Geology and Geophysics Pub Date : 2023-06-04 DOI: 10.1080/00288306.2023.2218101

Sophie J. Bonnington, J. Scott, M. Palmer, Nadine P. Cooper, M. Reid, C. Stirling

引用次数: 1

The first Triassic elasmobranch teeth from the Southern Hemisphere (Canterbury, New Zealand) 南半球发现的第一颗三叠纪板颌目牙齿(新西兰坎特伯雷)

IF 2.2 4区地球科学

New Zealand Journal of Geology and Geophysics Pub Date : 2023-05-21 DOI: 10.1080/00288306.2023.2214369

J. Rees, H. Campbell, J. E. Simes

引用次数: 0

Cambrian ocean floor crust preserved in the Takaka Terrane, New Zealand 保存在新西兰Takaka地块的寒武纪海底地壳

IF 2.2 4区地球科学

New Zealand Journal of Geology and Geophysics Pub Date : 2023-05-15 DOI: 10.1080/00288306.2023.2197239

C. Münker, F. Wombacher, C. Siebert

{"title":"Cambrian ocean floor crust preserved in the Takaka Terrane, New Zealand","authors":"C. Münker, F. Wombacher, C. Siebert","doi":"10.1080/00288306.2023.2197239","DOIUrl":"https://doi.org/10.1080/00288306.2023.2197239","url":null,"abstract":"ABSTRACT Cambrian igneous rocks in the Takaka Terrane of New Zealand provide important constraints for geodynamic reconstructions of the Cambrian SE Gondwana margin. We provide field data and a comprehensive trace element and isotope dataset for such rocks from the upper Baton River area in northwest Nelson, New Zealand, including the first combined Hf-Nd isotope data for Takaka Terrane rocks. These submarine volcanic rocks, known as Mataki and Benson volcanics of the Devil River Volcanics Group, are both interbedded with Haupiri Group sediments, providing a previously not observed direct stratigraphic link between the two volcanic units. Incompatible element abundances of Mataki Volcanics display a full spectrum from subduction-modified back-arc-tholeiites to E-MORB type tholeiites. Initial Hf-Nd isotope compositions are coupled, spanning a range from MORB-like to OIB-like compositions. The MORB-like endmember (initial ϵNd +7 and ϵHf +13), taps moderately depleted asthenospheric mantle. If extrapolated to present-day composition, this depleted mantle endmember does not resemble modern Pacific-type mantle, suggesting formation in a back-arc basin separated from Pacific mantle by a continent-ward, intra-oceanic subduction zone. The enriched asthenospheric mantle endmember in the Mataki Volcanics may be an equivalent to the sources of Neoproterozic or middle Cambrian intra-continental flood basalts in central and SE-Australia.","PeriodicalId":49752,"journal":{"name":"New Zealand Journal of Geology and Geophysics","volume":"66 1","pages":"405 - 427"},"PeriodicalIF":2.2,"publicationDate":"2023-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45898706","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

The potential for palaeoseismic and palaeoclimatic reconstructions from Lake Tennyson, North Canterbury, New Zealand 新西兰北坎特伯雷丁尼森湖古地震和古气候重建的潜力

IF 2.2 4区地球科学

New Zealand Journal of Geology and Geophysics Pub Date : 2023-05-15 DOI: 10.1080/00288306.2023.2209329

John-Mark Woolley, A. Lorrey, P. Augustinus, P. Gadd

引用次数: 0

Structure and topology of a brittle-ductile fault swarm at Crawford Knob, Franz Josef, New Zealand 新西兰弗朗茨约瑟夫克劳福德旋钮脆性-韧性断层群的结构和拓扑结构

IF 2.2 4区地球科学

New Zealand Journal of Geology and Geophysics Pub Date : 2023-05-07 DOI: 10.1080/00288306.2023.2203505

S. Ellis, M. Hill, T. Little

引用次数: 0

Zealandia and Australia at Ordovician continental margins: reconciling their similar and differing detrital zircon provenances within Rodinia 奥陶系大陆边缘的西兰迪亚和澳大利亚:在罗丁尼亚调和它们相似和不同的碎屑锆石物源

IF 2.2 4区地球科学

New Zealand Journal of Geology and Geophysics Pub Date : 2023-04-17 DOI: 10.1080/00288306.2023.2197238

C. Adams, H. Campbell

{"title":"Zealandia and Australia at Ordovician continental margins: reconciling their similar and differing detrital zircon provenances within Rodinia","authors":"C. Adams, H. Campbell","doi":"10.1080/00288306.2023.2197238","DOIUrl":"https://doi.org/10.1080/00288306.2023.2197238","url":null,"abstract":"ABSTRACT New detrital zircon ages from biostratigraphically well-controlled Ordovician sandstones in southeast Australia are compared with published counterparts in southern Zealandia. During Rodinia supercontinent assembly (RA), Australia and Zealandia age patterns are similar, everywhere with ubiquitous late Mesoproterozoic magmatic zircon sources. However, during earliest Gondwana supercontinent assembly (GA), the age patterns have different sediment sources: (1) those of late Neoproterozoic age are more strongly represented in Zealandia but of uncertain location, but (2) those of late Cambrian-Ordovician age are more prominent in eastern Australia, having probable origins in the Ross-Delamerian Orogen. In particular, a distinctive zircon component, ca. 600–650 Ma, is ubiquitous in Zealandia but rare in Australia. Early Paleoproterozoic and Archean (Nuna, NU) zircon sources (2000–3200 Ma) become important (and locally up to 25% total) in Zealandia but not in Australia. It is difficult to reconcile all these sediment source requirements within disparate and distant Australian-Antarctic Precambrian complexes. Instead, it is proposed that, through the early Palaeozoic, Zealandia had only local sediment sources in a discrete Rodinia basement continental block outcropping in South Zealandia that was formerly adjacent to South China.","PeriodicalId":49752,"journal":{"name":"New Zealand Journal of Geology and Geophysics","volume":"66 1","pages":"456 - 477"},"PeriodicalIF":2.2,"publicationDate":"2023-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42189254","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Cretaceous tectonostratigraphy of ‘the Great Coverham section’ and adjacent areas, northeastern Waiau Toa/Clarence valley, New Zealand 新西兰Waiau Toa/Clarence山谷东北部“Great Coverham剖面”及其邻近地区的白垩纪构造地层学

IF 2.2 4区地球科学

New Zealand Journal of Geology and Geophysics Pub Date : 2023-04-03 DOI: 10.1080/00288306.2023.2193415

J. Crampton

{"title":"Cretaceous tectonostratigraphy of ‘the Great Coverham section’ and adjacent areas, northeastern Waiau Toa/Clarence valley, New Zealand","authors":"J. Crampton","doi":"10.1080/00288306.2023.2193415","DOIUrl":"https://doi.org/10.1080/00288306.2023.2193415","url":null,"abstract":"ABSTRACT Late Early–Late Cretaceous strata preserved at the northeastern end of the Waiau Toa/Clarence valley, northeastern South Island, New Zealand, have been central to ongoing debates concerning the end of Mesozoic subduction on the Zealandian margin of Gondwana and the initiation of extension. New geological mapping within this area at Coverham, Kekerengu and Wharekiri, has resolved complex relationships between Cretaceous stratigraphic units and faults. Results indicate that, within the interval 110–100 Ma, Champagne and lower Split Rock formations record syn-tectonic deposition by marine mass-transport processes within confined sub-basins with steep seafloor gradients. Upper Split Rock Formation and overlying Nidd Formation record progressive burial of seafloor topography between c. 100–86 Ma. Although uncertainties remain, three or four faults appear to have been low-angle structures with normal displacements that were active within the interval c. 105–89 Ma; one of these faults experienced brief reversal of offset between c. 91 and 87 Ma. The new data are most consistent with a model of subduction shutdown between c. 105–100 Ma, following impact of the Hikurangi Plateau large igneous province at the subduction margin. Widespread uplift along the margin between 97 and 95 Ma may reflect subsequent rebound of the subducted plate.","PeriodicalId":49752,"journal":{"name":"New Zealand Journal of Geology and Geophysics","volume":"66 1","pages":"495 - 527"},"PeriodicalIF":2.2,"publicationDate":"2023-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41518159","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Introduction to the Kaikōura earthquake special issue 介绍Kaikōura地震特刊

IF 2.2 4区地球科学

New Zealand Journal of Geology and Geophysics Pub Date : 2023-04-03 DOI: 10.1080/00288306.2023.2197240

A. Nicol, A. Howell, N. Litchfield, T. Wilson, Stephen Bannister, C. Massey

{"title":"Introduction to the Kaikōura earthquake special issue","authors":"A. Nicol, A. Howell, N. Litchfield, T. Wilson, Stephen Bannister, C. Massey","doi":"10.1080/00288306.2023.2197240","DOIUrl":"https://doi.org/10.1080/00288306.2023.2197240","url":null,"abstract":"ABSTRACT The Kaikōura Earthquake ruptured a complex network of at least 20 faults in the northeastern South Island, with variable geometries, slip and slip rates. Ground shaking and surface fault rupture generated a tsunami, thousands of landslides, and many dammed rivers. The earthquake damaged farmland, buildings and infrastructure in the northeastern South Island and Wellington regions, closing critical transport networks for over a year. This special issue presents a collection of 12 papers on the earthquake. These papers cover a range of topics, including, the geometries and paleoearthquake histories of faults that ruptured, seismic hazards, the tsunami and coastal geomorphology, together with the societal impact and communication of the earthquake. They incorporate our understanding of the earthquake 5–6 years since it occurred. Despite an unprecedented amount of data and thousands of published papers referring to the earthquake, many key questions remain. These include: is the Hikurangi subduction interface capable of producing great earthquakes beneath the northeastern South Island? Why did the Hope Fault not accommodate significant slip in the earthquake? Has the earthquake changed the seismic hazard in central Aotearoa New Zealand? Addressing these questions will improve understanding of seismic processes and hazards helping to build resilience to future earthquakes.","PeriodicalId":49752,"journal":{"name":"New Zealand Journal of Geology and Geophysics","volume":"66 1","pages":"137 - 146"},"PeriodicalIF":2.2,"publicationDate":"2023-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47610674","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0