The Byers Basin: Jurassic-Cretaceous Tectonic And
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The Antarctic Treaty
The Antarctic Treaty Measures adopted at the Thirty-ninth Consultative Meeting held at Santiago, Chile 23 May – 1 June 2016 Presented to Parliament by the Secretary of State for Foreign and Commonwealth Affairs by Command of Her Majesty November 2017 Cm 9542 © Crown copyright 2017 This publication is licensed under the terms of the Open Government Licence v3.0 except where otherwise stated. To view this licence, visit nationalarchives.gov.uk/doc/open-government-licence/version/3 Where we have identified any third party copyright information you will need to obtain permission from the copyright holders concerned. This publication is available at www.gov.uk/government/publications Any enquiries regarding this publication should be sent to us at Treaty Section, Foreign and Commonwealth Office, King Charles Street, London, SW1A 2AH ISBN 978-1-5286-0126-9 CCS1117441642 11/17 Printed on paper containing 75% recycled fibre content minimum Printed in the UK by the APS Group on behalf of the Controller of Her Majestyʼs Stationery Office MEASURES ADOPTED AT THE THIRTY-NINTH ANTARCTIC TREATY CONSULTATIVE MEETING Santiago, Chile 23 May – 1 June 2016 The Measures1 adopted at the Thirty-ninth Antarctic Treaty Consultative Meeting are reproduced below from the Final Report of the Meeting. In accordance with Article IX, paragraph 4, of the Antarctic Treaty, the Measures adopted at Consultative Meetings become effective upon approval by all Contracting Parties whose representatives were entitled to participate in the meeting at which they were adopted (i.e. all the Consultative Parties). The full text of the Final Report of the Meeting, including the Decisions and Resolutions adopted at that Meeting and colour copies of the maps found in this command paper, is available on the website of the Antarctic Treaty Secretariat at www.ats.aq/documents. -
Jurassic-Cretaceous Tectonic and Depositional Evolution of the Forearc
International Geology Review ISSN: 0020-6814 (Print) 1938-2839 (Online) Journal homepage: https://tandfonline.com/loi/tigr20 The Byers Basin: Jurassic-Cretaceous tectonic and depositional evolution of the forearc deposits of the South Shetland Islands and its implications for the northern Antarctic Peninsula Joaquin Bastias, Mauricio Calderón, Lea Israel, Francisco Hervé, Richard Spikings, Robert Pankhurst, Paula Castillo, Mark Fanning & Raúl Ugalde To cite this article: Joaquin Bastias, Mauricio Calderón, Lea Israel, Francisco Hervé, Richard Spikings, Robert Pankhurst, Paula Castillo, Mark Fanning & Raúl Ugalde (2019): The Byers Basin: Jurassic-Cretaceous tectonic and depositional evolution of the forearc deposits of the South Shetland Islands and its implications for the northern Antarctic Peninsula, International Geology Review, DOI: 10.1080/00206814.2019.1655669 To link to this article: https://doi.org/10.1080/00206814.2019.1655669 View supplementary material Published online: 21 Aug 2019. Submit your article to this journal View related articles View Crossmark data Full Terms & Conditions of access and use can be found at https://tandfonline.com/action/journalInformation?journalCode=tigr20 INTERNATIONAL GEOLOGY REVIEW https://doi.org/10.1080/00206814.2019.1655669 ARTICLE The Byers Basin: Jurassic-Cretaceous tectonic and depositional evolution of the forearc deposits of the South Shetland Islands and its implications for the northern Antarctic Peninsula Joaquin Bastias a,b, Mauricio Calderónc, Lea Israela, Francisco Hervéa,c, Richard -
Byers Peninsula, Livingston Island, South Shetland Islands 1
From Measure 1 (2002) Management Plan for Antarctic Specially Protected Area No. 126 BYERS PENINSULA, LIVINGSTON ISLAND, SOUTH SHETLAND ISLANDS 1. Description of values to be protected Byers Peninsula (latitude 62°34’35" S, longitude 61°13’07" W, 60.6 km2), Livingston Island, South Shetland Islands, was originally designated as Specially Protected Area (SPA) No. 10 through Recommendation IV-10 in 1966. This area included the ice-free ground west of the western margin of the permanent ice sheet on Livingston Island, below Rotch Dome, as well as Window Island about 500 m off the northwest coast and five small ice-free areas on the south coast immediately to the east of Byers Peninsula. Values protected under the original designation included the diversity of plant and animal life, many invertebrates, a substantial population of southern elephant seals (Mirounga leonina), small colonies of Antarctic fur seals (Arctocephalus gazella), and the outstanding scientific interest associated with such a large variety of plants and animals within a relatively small area. Designation as an SPA was terminated through Recommendation VIII-2 and redesignation as a Site of Special Scientific Interest (SSSI) was made through Recommendation VIII-4 (1975, SSSI No. 6). The new designation as an SSSI more specifically sought to protect three smaller ice-free sites on the peninsula of Jurassic and Cretaceous sedimentary and fossiliferous strata, considered of outstanding scientific value for study of the former link between Antarctica and other southern continents. Following a proposal by Chile and the United Kingdom, the SSSI was subsequently extended through Recommendation XVI-5 (1991) to include boundaries similar to those of the original SPA: i.e. -
Management Plan for Antarctic Specially Protected Area No. 126 BYERS PENINSULA, LIVINGSTON ISLAND, SOUTH SHETLAND ISLANDS
Measure 4 (2016) Management Plan for Antarctic Specially Protected Area No. 126 BYERS PENINSULA, LIVINGSTON ISLAND, SOUTH SHETLAND ISLANDS Introduction The primary reason for the designation of Byers Peninsula (latitude 62°34'35" S, longitude 61°13'07" W), Livingston Island, South Shetland Islands, as an Antarctic Specially Protected Area (ASPA) is to protect the terrestrial and lacustrine habitats within the Area. Byers Peninsula was originally designated as Specially Protected Area (SPA) No. 10 through Recommendation IV-10 in 1966. This area included the ice-free ground west of the western margin of the permanent ice sheet on Livingston Island, below Rotch Dome, as well as Window Island about 500 m off the northwest coast and five small ice-free areas on the south coast immediately to the east of Byers Peninsula. Values protected under the original designation included the diversity of plant and animal life, many invertebrates, a substantial population of southern elephant seals (Mirounga leonina), small colonies of Antarctic fur seals (Arctocephalus gazella), and the outstanding scientific values associated with such a large variety of plants and animals within a relatively small area. Designation as an SPA was terminated through Recommendation VIII-2 and redesignation as a Site of Special Scientific Interest (SSSI) was made through Recommendation VIII-4 (1975, SSSI No. 6). The new designation as an SSSI more specifically sought to protect four smaller ice-free sites on the peninsula of Jurassic and Cretaceous sedimentary and fossiliferous strata, considered of outstanding scientific value for study of the former link between Antarctica and other southern continents. Following a proposal by Chile and the United Kingdom, the SSSI was subsequently extended through Recommendation XVI-5 (1991) to include boundaries similar to those of the original SPA: i.e. -
GEOLOGIA DE L'illa DE LIVINGSTON (SHETLAND DEL SUD, ANTÀRTIDA) Del Mesozoic Al Present
Departament de Geologia Dinàmica, Geofísica i Paleontopgi^' UNIVERSITAT DE BARCELONA GEOLOGIA DE L'ILLA DE LIVINGSTON (SHETLAND DEL SUD, ANTÀRTIDA) Del Mesozoic al Present Treball fet per RAIMON PALLAS i SERRA dins del Departament de Geologia Dinàmica, Geofísica i Paleontologia de la Universitat de Barcelona sota la direcció del Dr. Francesc Sàbat i el Dr. Joan Manuel Vilaplana per optar al grau de Doctor en Geologia. Barcelona, Gener de 1996 El Doctorand Els Directors Raimon Pallas i Serra Francesc Sàbat Joan Manuel Vilaplana OHb PAULAS ¿ERRR Aquest treball ha estat finançat per una beca de Formació de Personal Investigador del Ministeri d'Educació i Ciència i s'emmarca dins de les Accions Especials ANT89-822E i ANT90-1095E i el Projecte d'Investigació ANT91-1270 de la Comissió Interministerial de Ciència i Tecnologia (CICYT) Capítol 2. Síntesi geològica regional 2.2. GEOLOGIA DE LA TERRA DE GRAHAM, ILLES SHETLAND DEL SUD I CONCA DE BRANSFIELD En aquest apartat fem un repàs de les unitats lito-estratigràfiques registrades a la zona de l'extrem nord de la Península Antartica i les Illes Shetland del Sud. Tal com indiquen Storey & Garrett (1985) la història geològica de la Península Antartica ha estat determinada pels processos tectonics d'acreció al marge continental, magmatisme i extensió. Els diferents materials que formen la Península Antartica i les àrees veïnes es poden agrupar en els següents elements o ambients tectonics: basament, prisma d'acreció, avant-arc, arc magmàtic, rere-arc, zones d'extensió intra-arc. 2.2.1. Basament En un orogen tal com el de la Península Antartica, desenvolupat de forma possiblement continuada des de com a mínim finals del Paleozoic, el concepte de basament és força ambigu i forçosament arbitrari; les roques deformades en fases antigues poden funcionar com a basament en fases posteriors del mateix procés orogènic. -
Antarctica): Insight Into the Development of the South Shetland Islands and Bransfield Basin
ISSN (print): 1698-6180. ISSN (online): 1886-7995 www.ucm.es/info/estratig/journal.htm Journal of Iberian Geology 36 (1) 2010: 21-38 Recent tectonic and morphostructural evolution of Byers Peninsula (Antarctica): insight into the development of the South Shetland Islands and Bransfield Basin Evolución tectónica y morfoestructural reciente de la Península Byers (Antártida): evidencias sobre el desarrollo de las Islas Shetland del Sur y la Cuenca de Bransfield P. Alfaro*1, J. López-Martínez2, A. Maestro2,3, J. Galindo-Zaldívar4, J.J. Durán-Valsero3, J.A. Cuchí5 1Departamento de Ciencias de la Tierra y del Medio Ambiente. Universidad de Alicante, Apdo. 99, 03080 Alicante, Spain. [email protected] 2Departamento de Geología y Geoquímica. Universidad Autónoma de Madrid. 28049 Madrid, Spain. [email protected] 3Instituto Geológico y Minero de España, Ríos Rosas, 23. 28003 Madrid, Spain. [email protected]; [email protected] 4Departamento de Geodinámica. Universidad de Granada. IACT. 18071 Granada, Spain. [email protected] 5Escuela Politécnica Superior de Huesca. Universidad de Zaragoza. Carretera de Cuarte s/n, 22071 Huesca, Spain. [email protected] *Corresponding author Received: 22/12/09 / Accepted: 25/01/10 Abstract Byers Peninsula forms the western extremity of the Livingston Island (Antarctica) in the continental South Shetland Block. This tectonic block is bounded by the South Shetland Trench to the north, the Bransfield back-arc basin to the south, and extends to the South Scotia Ridge on the east. Westwards it is connected to the Antarctic Plate by a broad deformation zone located at the southern end of the Hero Fracture Zone. -
Geología De La Formación Cerro Negro (Cretácico) En Isla Livingston: Aportes a Su Geocronología Y Contenido Paleontológico
Revista de la Asociación Geológica Argentina 62 (4): 553-567 (2007) 553 GEOLOGÍA DE LA FORMACIÓN CERRO NEGRO (CRETÁCICO) EN ISLA LIVINGSTON: APORTES A SU GEOCRONOLOGÍA Y CONTENIDO PALEONTOLÓGICO Claudio A. PARICA1,2, Flavia M. SALANI 1,2,3, Ezequiel VERA2,4, Marcela REMESAL1,2,3 y Silvia N. CÉSARI 2,4 ¹ Escuela de Posgrado. Universidad de San Martín. Belgrano 3563, 1650 San Martín Prov. Buenos Aires. Email: [email protected] 2 CONICET 3 Depto. Cs. Geológicas Facultad de Cs. Exactas y Naurales-UBA. Pabellón II Ciudad Universitaria 1428 Buenos Aires. 4 Museo Argentino de Ciencias Naturales Bernardino Rivadavia. Av. Angel Gallardo 470 1405 Buenos Aires. RESUMEN: La península Byers se encuentra en el extremo occidental de la isla Livingston, archipiélago de las islas Shetland del Sur. Geológicamente está caracterizada por depósitos marinos, continentales y volcanismo cretácico-terciario que son incluidos en la Formación Cerro Negro de la sección superior del Grupo Byers. Las secuencias magmáticas han sido divididas en dos grupos principales, el primero comprende a las rocas piroclásticas y reúne cinco unidades con un importante desarrollo y distribución en el área. Por su parte, el segundo grupo com- prende lavas e intrusivos aflorantes en cerros Don Carlos, Usnea (Usnea Plug), Chester (Chester Cone), Sealer (Sealer Hill) y Negro (Negro Hill). Los términos sedimentarios incluyen conglomerados, areniscas y pelitas, de color gris verdoso con estratificación entrecruzada (tanto tabular como en artesa), raramente estratos macizos, laminación horizontal (en algunos casos de naturaleza rítmica), y estructuras de defor- mación sinsedimentaria (principalmente laminación convoluta). Se propone un ambiente fluvial de depositación, con canales dominados por carga de lecho y barras areno-gravosas bien desarrolladas. -
The Antarctic Treaty Providing for the Designation of Antarctic Specially Protected Areas (“ASPA”) and Approval of Management Plans for Those Areas;
Wood, S.W., Batchelor, R.L., Goldman, A., Rinsland, C.P., Connor, B.J., Murcray, F.J., Stephan, T.M. & Heuff, D.N. 2004. Ground-based nitric acid measurements at Arrival Heights, Antarctica, using solar and lunar Fourier transform infrared observations. Journal of Geophysical Research 109: D18307. Wright, I.M., Fraser, B.J., & Menk F.W. 1998. Observations of polar cap arc drift motion from Scott Base S-RAMP Proceedings of the AIP Congress, Perth, September 1998. Zeng, G., Wood, S.W., Morgenstern, O., Jones, N.B., Robinson, J., & Smale, D. 2012. Trends and variations in CO, C2H6, and HCN in the Southern Hemisphere point to the declining anthropogenic emissions of CO and C2H6, Atmospheric Chemistry & Physics 12: 7543-55. 51 ! ! ! 52! ! 53 ! ! ! Measure 4 (2016) Antarctic Specially Protected Area No 126 (Byers Peninsula, Livingston Island, South Shetland Islands): Revised Management Plan The Representatives, Recalling Articles 3, 5 and 6 of Annex V to the Protocol on Environmental Protection to the Antarctic Treaty providing for the designation of Antarctic Specially Protected Areas (“ASPA”) and approval of Management Plans for those Areas; Recalling - Recommendation IV-10 (1966), which designated Byers Peninsula, Livingstone Island, South Shetland Islands as Specially Protected Area (“SPA”) No 10; - Recommendation VIII-2 (1975), which terminated SPA 10, and Recommendation VIII-4 (1975), which redesignated the Area as Site of Special Scientific Interest (“SSSI”) No 6 and annexed the first Management Plan for the Site; - Recommendations X-6 -
The Holocene Deglaciation of the Byers Peninsula (Livingston Island, Antarctica) Based on the Dating of Lake Sedimentary Records
Geomorphology 261 (2016) 89–102 Contents lists available at ScienceDirect Geomorphology journal homepage: www.elsevier.com/locate/geomorph The Holocene deglaciation of the Byers Peninsula (Livingston Island, Antarctica) based on the dating of lake sedimentary records M. Oliva a,⁎, D. Antoniades b, S. Giralt c, I. Granados d,S.Pla-Rabese,M.Torof,E.J.Liug, J. Sanjurjo h, G. Vieira a a Centre for Geographical Studies -IGOT, Universidade de Lisboa, Portugal b Department of Géographie & Centre d'Études Nordiques, Université Laval, Canada c Institute of Earth Sciences Jaume Almera, CSIC, Spain d Centro de Investigación, Seguimiento y Evaluación, Guadarrama National Park, Spain e Centre de Recerca Ecològica i Aplicacions Forestals (CREAF-CSIC), Spain f Centre for Hidrographic Studies (CEDEX), Spain g Department of Earth Sciences, University of Bristol, UK h University Institute of Geology, University of A Coruña, Spain article info abstract Article history: The process of deglaciation in the Antarctic Peninsula region has large implications for the geomorphological and Received 30 July 2015 ecological dynamics of the ice-free environments. However, uncertainties still remain regarding the age of degla- Received in revised form 23 February 2016 ciation in many coastal environments, as is the case in the South Shetland Islands. This study focuses on the Byers Accepted 28 February 2016 Peninsula, the largest ice-free area in this archipelago and the one with greatest biodiversity in Antarctica. A com- Available online 2 March 2016 plete lacustrine sedimentary sequence was collected from five lakes distributed along a transect from the west- ern coast to the Rotch Dome glacier front: Limnopolar, Chester, Escondido, Cerro Negro and Domo lakes. -
Late Jurassic Palaeogeography and Anaerobic-Dysaerobic Sedimentation in the Northern Antarctic Peninsula Region
Journal ofthe Geological Society, London, Vol. 152, 1995, pp. 469-480, 10 figs. 1 table Printed in Northern Ireland Late Jurassic palaeogeography and anaerobic-dysaerobic sedimentation in the northern Antarctic Peninsula region D. PIRRIE' & J.A.CRAME' 'Camborne School of Mines, University of Exeter, Redruth, Cornwall TRI5 3SE, UK 2British Antarctic Survey, Natural Environment Research Council, High Cross, Madingley Road, Cambridge CB3 OET, UK Abstract: Late Jurassic anaerobic-dysaerobic mudstones crop out on both the Weddell Sea (back-arc) and Pacific (fore-arc) margins of the northern Antarctic Peninsula. The only known occurrence on the Pacificmargin of theAntarctic Peninsula is the Anchorage Formation of LivingstonIsland. This mudstone dominated unit comprises interbedded volcaniclastic sandstones, pyroclastic/epiclastic tuffs and radiolarian mudstones. The volcaniclastic sandstones are interpreted as representing deposition fromturbidity currents. The tuffsrepresent sedimentation by both primary airfall processes and resedimentation by low concentration turbidity currents. The radiolarian mudstones represent suspen- sion sedimentation, and reveal an upward increase in bioturbation with a transition from anaerobic- dysaerobic conditions to dysaerobic-aerobic conditions. These facies and the observed vertical change in oxygenation conditionsare similar to those seen in the Nordenskjold Formation on the Weddell Sea margin of the Antarctic Peninsula. However, biostratigraphical investigations show that the transition from dysaerobic to aerobic conditions occurred during the late Kimmeridgian-early Tithonian in the Anchorage Formation but late Tithonian or early Berriasian in the Nordenskjold Formation. This diachroneity is related to the palaeogeographical development of the Antarctic Peninsula magmatic arc. A wide epicontinental sea and subdued arc relief in the early Kimmeridgian was followed in the Tithonian by arc uplift,increasing oxygenation in the fore-arc basin, and the development of a restricted basin in the hack-arc region. -
Ammonite Fauna from the Byers Peninsula, Livingston Island, South Shetland Islands, Antarctica
Доклади на Българската академия на науките Comptes rendus de l’Acad´emiebulgare des Sciences Tome 70, No 11, 2017 GEOLOGIE Stratigraphie AMMONITE FAUNA FROM THE BYERS PENINSULA, LIVINGSTON ISLAND, SOUTH SHETLAND ISLANDS, ANTARCTICA Docho Dochev, Vyara Idakieva, Marin Ivanov, Stefan Velev∗, Kamen Bonev∗ (Submitted by Academician T. Nikolov on July 14, 2017) Abstract The Byers Group, exposed on the Byers Peninsula (Western Livingston Island, Antarctica), comprises thick Upper Jurassic{Lower Cretaceous sedi- mentary and volcanic succession, deposited in marginal fore-arc environments. The mudstones and coarse-grained sandstones of the Devils Point Formation and the President Beaches Formation, which are the most fossiliferous parts of the Byers Group, yielded various invertebrate fossils and plant remains. Rela- tively abundant and varied in species ammonite fauna was found in the upper Tithonian{lower Berriasian sediments in the Devils Point and a part of Pres- ident Beaches areas, in the southwestern part of the Byers Peninsula. The main focus of this work is the biostratigraphic interpretation of the newly col- lected ammonites, belonging to the genera Haplophylloceras Spath, 1925; Ar- gentiniceras Spath, 1925; Spiticeras Spath, 1922; and Protancyloceras Spath, 1924. Key words: Tithonian{Berriasian, ammonites, Livingston Island, Antarc- tica Introduction. The Upper Jurassic{Lower Cretaceous volcano-sedimentary sequences on the Byers Peninsula, western Livingston Island, occupy one of the largest ice-free areas in the South Shetland Islands (Fig. 1). Smellie et al. [1] and later Crame et al. [2] proposed formal lithostratigraphic schemes, establish- ing the following units: Anchorage, Devils Point, President Beaches and Chester Cone formations, included in the Byers Group. -
SHETLAND DEL SUD, ANTÀRTIDA) Del Mesozoic Al Present
GEOLOGIA DE L'ILLA DE LIVINGSTON (SHETLAND DEL SUD, ANTÀRTIDA) Del Mesozoic al Present Raimon Pallas i Serra Tesi Doctoral Gener de 1996 Departament de Geologia Dinàmica, Geofísica i Paleontologia UNIVERSITAT DE BARCELONA Departament de Geologia Dinàmica, Geofísica i Paleontopgi^' UNIVERSITAT DE BARCELONA GEOLOGIA DE L'ILLA DE LIVINGSTON (SHETLAND DEL SUD, ANTÀRTIDA) Del Mesozoic al Present Treball fet per RAIMON PALLAS i SERRA dins del Departament de Geologia Dinàmica, Geofísica i Paleontologia de la Universitat de Barcelona sota la direcció del Dr. Francesc Sàbat i el Dr. Joan Manuel Vilaplana per optar al grau de Doctor en Geologia. Barcelona, Gener de 1996 El Doctorand Els Directors Raimon Pallas i Serra Francesc Sàbat Joan Manuel Vilaplana OHb PAULAS ¿ERRR Aquest treball ha estat finançat per una beca de Formació de Personal Investigador del Ministeri d'Educació i Ciència i s'emmarca dins de les Accions Especials ANT89-822E i ANT90-1095E i el Projecte d'Investigació ANT91-1270 de la Comissió Interministerial de Ciència i Tecnologia (CICYT) A qui s'ho miri amb curiositat i sentit crític AGRAÏMENTS A en Francesc Sàbat i en Joan Manuel Vilaplana, els meus directors de tesi, per haver-me animat a fer aquest treball, haver-me convidat a dues campanyes de recollida de dades a Livingston i haver-me recolzat en tot moment durant els darrers quatre anys. Sense la seva dedicació i compromís aquesta tesi no hauria arribat a bon terme. A la resta de companys antàrtics, en David Serrat, Josep Anton Muñoz, Jaume Calvet, Pere Santanach, Josep Maria Casas, Glòria Furdada i Jorge Enrique per la feina feta, l'ajut i les bones estones.