IUCN Atlas of the Mediterranean Seamounts
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Inferences on Potential Seamount Locations from Mid-Resolution
T. Morato and D. Pauly (eds.), Seamounts: Biodiversity and Fisheries, Page 7 INFERENCES ON POTENTIAL SEAMOUNT LOCATIONS FROM MID- RESOLUTION BATHYMETRIC DATA Adrian Kitchingman and Sherman Lai Fisheries Centre, The University of British Columbia. 2259 Lower Mall, Vancouver, B.C., V6T 1Z4, Canada [email protected]; [email protected] ABSTRACT Seamounts are underwater volcanoes that did not grow tall enough to break to the sea surface and turn into islands. Once formed, seamounts tend to gradually sink under their own weight and the subsidence of the lithosphere. The ocean floor is littered with these former seamounts, here called ‘seamounds’. Seamounts occur throughout the world's oceans, but their number (which may surpass 50,000) is difficult to estimate, even roughly, because it depends on the resolution of the bathymetric map used and the specific definition of a seamount used, i.e., the limits used to distinguish between seamounts and seamounds. Here, the locations of a subset of the seamounts of the world were identified using two algorithms relying on the depth differences between adjacent cells of a digital global elevation map distributed by the U.S. National Oceanographic and Atmospheric Agency (NOAA). The overlap of both algorithms resulted in a set of about 14,000 seamounts, but a different number would have been found had we used different thresholds. Known seamount locations supplied by NOAA and SeamountsOnline (http://seamounts.sdsc.edu) were compared against the corresponding seamounts located by the study, which led to some degree of ground-truthing. The coordinates of the seamounts identified in this study are available on the CD-ROM attached to this report, and on http://www.seaaroundus.org. -
No. 40. the System of Lunar Craters, Quadrant Ii Alice P
NO. 40. THE SYSTEM OF LUNAR CRATERS, QUADRANT II by D. W. G. ARTHUR, ALICE P. AGNIERAY, RUTH A. HORVATH ,tl l C.A. WOOD AND C. R. CHAPMAN \_9 (_ /_) March 14, 1964 ABSTRACT The designation, diameter, position, central-peak information, and state of completeness arc listed for each discernible crater in the second lunar quadrant with a diameter exceeding 3.5 km. The catalog contains more than 2,000 items and is illustrated by a map in 11 sections. his Communication is the second part of The However, since we also have suppressed many Greek System of Lunar Craters, which is a catalog in letters used by these authorities, there was need for four parts of all craters recognizable with reasonable some care in the incorporation of new letters to certainty on photographs and having diameters avoid confusion. Accordingly, the Greek letters greater than 3.5 kilometers. Thus it is a continua- added by us are always different from those that tion of Comm. LPL No. 30 of September 1963. The have been suppressed. Observers who wish may use format is the same except for some minor changes the omitted symbols of Blagg and Miiller without to improve clarity and legibility. The information in fear of ambiguity. the text of Comm. LPL No. 30 therefore applies to The photographic coverage of the second quad- this Communication also. rant is by no means uniform in quality, and certain Some of the minor changes mentioned above phases are not well represented. Thus for small cra- have been introduced because of the particular ters in certain longitudes there are no good determi- nature of the second lunar quadrant, most of which nations of the diameters, and our values are little is covered by the dark areas Mare Imbrium and better than rough estimates. -
Glossary Glossary
Glossary Glossary Albedo A measure of an object’s reflectivity. A pure white reflecting surface has an albedo of 1.0 (100%). A pitch-black, nonreflecting surface has an albedo of 0.0. The Moon is a fairly dark object with a combined albedo of 0.07 (reflecting 7% of the sunlight that falls upon it). The albedo range of the lunar maria is between 0.05 and 0.08. The brighter highlands have an albedo range from 0.09 to 0.15. Anorthosite Rocks rich in the mineral feldspar, making up much of the Moon’s bright highland regions. Aperture The diameter of a telescope’s objective lens or primary mirror. Apogee The point in the Moon’s orbit where it is furthest from the Earth. At apogee, the Moon can reach a maximum distance of 406,700 km from the Earth. Apollo The manned lunar program of the United States. Between July 1969 and December 1972, six Apollo missions landed on the Moon, allowing a total of 12 astronauts to explore its surface. Asteroid A minor planet. A large solid body of rock in orbit around the Sun. Banded crater A crater that displays dusky linear tracts on its inner walls and/or floor. 250 Basalt A dark, fine-grained volcanic rock, low in silicon, with a low viscosity. Basaltic material fills many of the Moon’s major basins, especially on the near side. Glossary Basin A very large circular impact structure (usually comprising multiple concentric rings) that usually displays some degree of flooding with lava. The largest and most conspicuous lava- flooded basins on the Moon are found on the near side, and most are filled to their outer edges with mare basalts. -
Feature of the Month – January 2016 Galilaei
A PUBLICATION OF THE LUNAR SECTION OF THE A.L.P.O. EDITED BY: Wayne Bailey [email protected] 17 Autumn Lane, Sewell, NJ 08080 RECENT BACK ISSUES: http://moon.scopesandscapes.com/tlo_back.html FEATURE OF THE MONTH – JANUARY 2016 GALILAEI Sketch and text by Robert H. Hays, Jr. - Worth, Illinois, USA October 26, 2015 03:32-03:58 UT, 15 cm refl, 170x, seeing 8-9/10 I sketched this crater and vicinity on the evening of Oct. 25/26, 2015 after the moon hid ZC 109. This was about 32 hours before full. Galilaei is a modest but very crisp crater in far western Oceanus Procellarum. It appears very symmetrical, but there is a faint strip of shadow protruding from its southern end. Galilaei A is the very similar but smaller crater north of Galilaei. The bright spot to the south is labeled Galilaei D on the Lunar Quadrant map. A tiny bit of shadow was glimpsed in this spot indicating a craterlet. Two more moderately bright spots are east of Galilaei. The western one of this pair showed a bit of shadow, much like Galilaei D, but the other one did not. Galilaei B is the shadow-filled crater to the west. This shadowing gave this crater a ring shape. This ring was thicker on its west side. Galilaei H is the small pit just west of B. A wide, low ridge extends to the southwest from Galilaei B, and a crisper peak is south of H. Galilaei B must be more recent than its attendant ridge since the crater's exterior shadow falls upon the ridge. -
Checklist of Fish and Invertebrates Listed in the CITES Appendices
JOINTS NATURE \=^ CONSERVATION COMMITTEE Checklist of fish and mvertebrates Usted in the CITES appendices JNCC REPORT (SSN0963-«OStl JOINT NATURE CONSERVATION COMMITTEE Report distribution Report Number: No. 238 Contract Number/JNCC project number: F7 1-12-332 Date received: 9 June 1995 Report tide: Checklist of fish and invertebrates listed in the CITES appendices Contract tide: Revised Checklists of CITES species database Contractor: World Conservation Monitoring Centre 219 Huntingdon Road, Cambridge, CB3 ODL Comments: A further fish and invertebrate edition in the Checklist series begun by NCC in 1979, revised and brought up to date with current CITES listings Restrictions: Distribution: JNCC report collection 2 copies Nature Conservancy Council for England, HQ, Library 1 copy Scottish Natural Heritage, HQ, Library 1 copy Countryside Council for Wales, HQ, Library 1 copy A T Smail, Copyright Libraries Agent, 100 Euston Road, London, NWl 2HQ 5 copies British Library, Legal Deposit Office, Boston Spa, Wetherby, West Yorkshire, LS23 7BQ 1 copy Chadwick-Healey Ltd, Cambridge Place, Cambridge, CB2 INR 1 copy BIOSIS UK, Garforth House, 54 Michlegate, York, YOl ILF 1 copy CITES Management and Scientific Authorities of EC Member States total 30 copies CITES Authorities, UK Dependencies total 13 copies CITES Secretariat 5 copies CITES Animals Committee chairman 1 copy European Commission DG Xl/D/2 1 copy World Conservation Monitoring Centre 20 copies TRAFFIC International 5 copies Animal Quarantine Station, Heathrow 1 copy Department of the Environment (GWD) 5 copies Foreign & Commonwealth Office (ESED) 1 copy HM Customs & Excise 3 copies M Bradley Taylor (ACPO) 1 copy ^\(\\ Joint Nature Conservation Committee Report No. -
Data Structure
Data structure – Water The aim of this document is to provide a short and clear description of parameters (data items) that are to be reported in the data collection forms of the Global Monitoring Plan (GMP) data collection campaigns 2013–2014. The data itself should be reported by means of MS Excel sheets as suggested in the document UNEP/POPS/COP.6/INF/31, chapter 2.3, p. 22. Aggregated data can also be reported via on-line forms available in the GMP data warehouse (GMP DWH). Structure of the database and associated code lists are based on following documents, recommendations and expert opinions as adopted by the Stockholm Convention COP6 in 2013: · Guidance on the Global Monitoring Plan for Persistent Organic Pollutants UNEP/POPS/COP.6/INF/31 (version January 2013) · Conclusions of the Meeting of the Global Coordination Group and Regional Organization Groups for the Global Monitoring Plan for POPs, held in Geneva, 10–12 October 2012 · Conclusions of the Meeting of the expert group on data handling under the global monitoring plan for persistent organic pollutants, held in Brno, Czech Republic, 13-15 June 2012 The individual reported data component is inserted as: · free text or number (e.g. Site name, Monitoring programme, Value) · a defined item selected from a particular code list (e.g., Country, Chemical – group, Sampling). All code lists (i.e., allowed values for individual parameters) are enclosed in this document, either in a particular section (e.g., Region, Method) or listed separately in the annexes below (Country, Chemical – group, Parameter) for your reference. -
Invading the Mediterranean Sea: Biodiversity Patterns Shaped by Human Activities
ORIGINAL RESEARCH ARTICLE published: 30 September 2014 MARINE SCIENCE doi: 10.3389/fmars.2014.00032 Invading the Mediterranean Sea: biodiversity patterns shaped by human activities Stelios Katsanevakis 1*, Marta Coll 2, Chiara Piroddi 1, Jeroen Steenbeek 3, Frida Ben Rais Lasram 4, Argyro Zenetos 5 and Ana Cristina Cardoso 1 1 Water Resources Unit, Institute for Environment and Sustainability, Joint Research Centre, Ispra, Italy 2 Institut de Recherche pour le Développement, UMR EME 212, Centre de Recherche Halieutique Méditerranéenne et Tropicale, Sète, France 3 Ecopath International Initiative Research Association, Barcelona, Spain 4 Unité de Recherche Ecosystèmes et Ressources Aquatiques UR03AGRO1, Institut National Agronomique de Tunisie, Tunis, Tunisia 5 Institute of Marine Biological Resources and Inland Waters, Hellenic Centre for Marine Research, Agios Kosmas, Greece Edited by: Human activities, such as shipping, aquaculture, and the opening of the Suez Canal, Christos Dimitrios Arvanitidis, have led to the introduction of nearly 1000 alien species into the Mediterranean Sea. Hellenic Centre for Marine We investigated how human activities, by providing pathways for the introduction of alien Research, Greece species, may shape the biodiversity patterns in the Mediterranean Sea. Richness of Red Reviewed by: Melih Ertan Çinar, Ege University, Sea species introduced through the Suez Canal (Lessepsian species) is very high along the 2 Turkey eastern Mediterranean coastline, reaching a maximum of 129 species per 100 km ,and Salud Deudero, Instituto Español de declines toward the north and west. The distribution of species introduced by shipping is Oceanografia, Spain strikingly different, with several hotspot areas occurring throughout the Mediterranean Christos Dimitrios Arvanitidis, Hellenic Centre for Marine basin. -
A New Crustal Model of the Anatolia–Aegean
A new crustal model of the Anatolia–Aegean domain: evidence for the dominant role of isostasy in the support of the Anatolian plateau Hayrullah Karabulut, Anne Paul, Ali Değer Özbakır, Tuğçe Ergün, Selver Şentürk To cite this version: Hayrullah Karabulut, Anne Paul, Ali Değer Özbakır, Tuğçe Ergün, Selver Şentürk. A new crustal model of the Anatolia–Aegean domain: evidence for the dominant role of isostasy in the support of the Anatolian plateau. Geophysical Journal International, Oxford University Press (OUP), 2019, 218 (1), pp.57-73. 10.1093/gji/ggz147. hal-02156625 HAL Id: hal-02156625 https://hal.archives-ouvertes.fr/hal-02156625 Submitted on 14 Jun 2019 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. Geophys. J. Int. (2019) 218, 57–73 doi: 10.1093/gji/ggz147 Advance Access publication 2019 March 27 GJI Geodynamics and tectonics A new crustal model of the Anatolia–Aegean domain: evidence for the dominant role of isostasy in the support of the Anatolian plateau Hayrullah Karabulut,1 Anne Paul,2 Ali Deger˘ Ozbakır,¨ 1 Tugc˘ ¸e Ergun¨ 1 and Selver S¸enturk¨ 3 1Bogazic˘ ¸i University, Kandilli Observatory and Earthquake Research Institute, Department of Geophysics, 34685 Istanbul, Turkey. -
I. Convergent Plate Boundaries (Destructive Margins) (Colliding Plates)
I. Convergent plate boundaries (destructive margins) (colliding plates) 1. Plates collide, an ocean trench forms, lithosphere is subducted into the mantle 2. Types of convergence—three general classes, created by two types of plates —denser oceanic plate subsides into mantle SUBDUCTION --oceanic trench present where this occurs -- Plate descends angle average 45o a. Oceanic-continental convergence 1. Denser oceanic slab sinks into the asthenosphere—continental plate floats 2. Pockets of magma develop and rise—due to water added to lower part of overriding crust—100-150 km depth 3. Continental volcanic arcs form a. e.g., Andes Low angle, strong coupling, strong earthquakes i. Nazca plate ii. Seaward migration of Peru-Chile trench b. e.g., Cascades c. e.g., Sierra Nevada system example of previous subduction b. Oceanic-oceanic convergence 1. Two oceanic slabs converge HDEW animation Motion at Plate Boundaries a. one descends beneath the other b. the older, colder one 2. Often forms volcanoes on the ocean floor 3. Volcanic island arcs forms as volcanoes emerge from the sea 200-300 km from subduction trench TimeLife page 117 Philippine Arc a. e.g., Aleutian islands b. e.g., Mariana islands c. e.g., Tonga islands all three are young volcanic arcs, 20 km thick crust Japan more complex and thicker crust 20-35 km thick c. Continental-continental convergence— all oceaninc crust is destroyed at convergence, and continental crust remains 1. continental crust does not subside—too buoyant 2. two continents collide—become ‘sutured’ together 3. Can produce new mountain ranges such as the Himalayas II. Transform fault boundaries 1. -
Plate Tectonics Says That Earth’S Plates Move Because of Convection Currents in the Mantle
Bellringer Which ocean is getting smaller and which ocean is getting bigger due to subduction and sea floor spreading? Plate Tectonic Theory Notes How Plates Move • Earth’s crust is broken into many jagged pieces. The surface is like the shell of a hard-boiled egg that has been rolled. The pieces of Earth’s crust are called plates. Plates carry continents, oceans floors, or both. How Plates Move • The theory of plate tectonics says that Earth’s plates move because of convection currents in the mantle. Currents in the mantle carry plates on Earth’s surface, like currents in water carry boats on a river, or Cheerios in milk. How Plates Move • Plates can meet in three different ways. Plates may pull apart, push together, or slide past each other. Wherever plates meet, you usually get volcanoes, mountain ranges, or ocean trenches. Plate Boundaries • A plate boundary is where two plates meet. Faults form along plate boundaries. A fault is a break in Earth’s crust where blocks of rock have slipped past each other. Plate Boundaries • Where two plates move apart, the boundary is called a divergent boundary. • A divergent boundary between two oceanic plates will result in a mid-ocean ridge AND rift valley. (SEE: Sea-Floor Spreading) • A divergent boundary between two continental plates will result in only a rift valley. This is currently happening at the Great Rift Valley in east Africa. Eventually, the Indian Ocean will pour into the lowered valley and a new ocean will form. Plate Boundaries • Where two plates push together, the boundary is called a convergent boundary. -
Importance of Seamount-Like Features for Conserving Mediterranean Marine Habitats and Threatened Species
Nº. 1105 IMPORTANCE OF SEAMOUNT-LIKE FEATURES FOR CONSERVING MEDITERRANEAN MARINE HABITATS AND THREATENED SPECIES Ricardo Aguilar, Xavier Pastor, Silvia García & Pilar Marín Oceana. Leganitos, 47 - 28013 Madrid. Spain - *[email protected] INTRODUCTION HABITAT LOCATION MAIN SPECIES 16 of the more than 200 seamount‑like peaks in the Mediterranean1 have been observed using ROV. Coral reefs 4, 5, 6, 7 Lophelia pertusa, Madrepora oculata Desmophyllum dianthus, Stenocyathus vermiformis, The findings, which include carnivorous sponges, elasmobranches, coral gardens, sponge aggregations, Cold water corals All sites Caryophyllia spp. Pourtalosmilia anthophyllites, Javania caileti, coralligenous beds, as well as species new to science like the giant foraminifera Spiculosiphon oceana, Anomocora fecunda, Dendrophyllia spp. Paramuricea spp., Eunicella spp., Viminella flagellum, or new to the Mediterranean, like the scleractinian Anomocora fecunda, underscore the importance of 1, 2, 3, 4, 5, Callogorgia verticillata, Acanthogorgia spp., Placogorgia these geological features as hotspots and shelters/refuges species and habitats that are threatened, in Gorgonian/coral gardens: 6, 7, 8, 9, 11, coronata, Swiftia pallida, Muriceides lepida, Villogorgia regression, or rare in other Mediterranean areas. 12, 13, 14 bebrycoides, Bebryce mollis, Nicella granifera 1, 4, 5, 6, 7, Leiopathes glaberrima, Antipathes dichotoma, Antipathella METHODOLOGY Black corals Since 2006, Oceana has carried out six expeditions in the Mediterranean performing 129 ROV’s dives 9, 11, 15, 16 subpinnata, Parantipathes larix Isidella elongata, Pennatula spp., Pteroeides griseum, 2, 3, 4, 7, 8, over 16 seamounts, between ‑37 and ‑638 meters deep. Soft bottoms’ octocorals Virgularia mirabilis, Veretillun cynomorium, Kophobelemnon 9, 11, 14, 16 RESULTS stelliferum, Funiculina quadrangularis 2 3, 4, 5, 6, 7, Asconema setubalense, Phakellia spp., Axinella spp. -
Exploring Submarine Arc Volcanoes Steven Carey University of Rhode Island, [email protected]
University of Rhode Island DigitalCommons@URI Graduate School of Oceanography Faculty Graduate School of Oceanography Publications 2007 Exploring Submarine Arc Volcanoes Steven Carey University of Rhode Island, [email protected] Haraldur Sigurdsson University of Rhode Island Follow this and additional works at: https://digitalcommons.uri.edu/gsofacpubs Terms of Use All rights reserved under copyright. Citation/Publisher Attribution Carey, S., and H. Sigurdsson. 2007. Exploring submarine arc volcanoes. Oceanography 20(4):80–89, https://doi.org/10.5670/ oceanog.2007.08. Available at: https://doi.org/10.5670/oceanog.2007.08 This Article is brought to you for free and open access by the Graduate School of Oceanography at DigitalCommons@URI. It has been accepted for inclusion in Graduate School of Oceanography Faculty Publications by an authorized administrator of DigitalCommons@URI. For more information, please contact [email protected]. This article has This been published in or collective redistirbution of any portion of this article by photocopy machine, reposting, or other means is permitted only with the approval of The approval portionthe ofwith any permitted articleonly photocopy by is of machine, reposting, this means or collective or other redistirbution SP ec I A L Iss U E On Ocean E X P L O R ATIO N Oceanography , Volume 20, Number 4, a quarterly journal of The 20, Number 4, a quarterly , Volume O ceanography Society. Copyright 2007 by The 2007 by Copyright Society. ceanography Exploring O ceanography Society. All rights All reserved. Society. ceanography O Submarine Arc Volcanoes or Th e [email protected] Send Society. ceanography to: correspondence all B Y S T even C A R E Y an D H A R A LDUR SIGURD ss O N Three quarters of Earth’s volcanic activ- although a significant part of arc volca- tion of tsunamis (Latter, 1981).