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Osl Dating of High-Elevation Alluvial Sediments: Mcmurdo Dry
OSL DATING OF HIGH-ELEVATION ALLUVIAL SEDIMENTS: MCMURDO DRY VALLEYS, ANTARCTICA A Thesis Submitted to the Graduate Faculty of the North Dakota State University of Agriculture and Applied Science By Meridith Ann Ramsey In Partial Fulfillment of the Requirements for the Degree of MASTER OF SCIENCE Major Program: Environmental and Conservation Science November 2014 Fargo, North Dakota North Dakota State University Graduate School Title OSL DATING OF HIGH-ELEVATION ALLUVIAL SEDIMENTS: MCMURDO DRY VALLEYS, ANTARCTICA By Meridith Ann Ramsey The Supervisory Committee certifies that this disquisition complies with North Dakota State University’s regulations and meets the accepted standards for the degree of MASTER OF SCIENCE SUPERVISORY COMMITTEE: Kenneth Lepper Chair Adam Lewis Lisa Montplaisir Approved: 04/16/2015 Eakalak Khan Date Department Chair ABSTRACT High-elevation alluvial fans in the McMurdo Dry Valleys are a record of short-term, occasional melting events along the margins of the East Antarctic Ice Sheet. Sediment samples were dated from five fans using Optically Stimulated Luminescence (OSL) dating. OSL dates the time since quartz grains were last exposed to sunlight; all sample preparation takes place in a dark room. Thirteen samples were dated for this thesis, the ages were stratigraphically consistent and ranged from 1.1 ka to 105.9 ka. Clusters of fan activity occurred between 1.1 and 3.1 ka and 8.1 and 11.1 ka. The melting events appear to be linked to insolation, with periods of fan activity occurring usually at times of increased mean annual insolation. The alluvial fans show promise as a possible archive for climate proxies in this region of Antarctica. -
The Future of Continental Scientific Drilling U.S
THE FUTURE OF CONTINENTAL SCIENTIFIC DRILLING U.S. PERSPECTIVE Proceedings of a workshop | June 4-5, 2009 | Denver, Colorado DOSECC WORKSHOP PUBLICATION 1 Front Cover: Basalts and rhyolites of the Snake River Plain at Twin Falls, Idaho. Project Hotspot will explore the interaction of the Yellowstone hotspot with the continental crust by sampling the volcanic rocks underlying the plain. Two 1.5 km holes will penetrate both the surficial basalt and the underlying rhyolite caldera-fill and outflow depos- its. A separate drill hole will explore the paleoclimate record in Pliocene Lake Idaho in the western Snake River Plain. In addition to the understanding of continent-mantle interaction that develops and the paleoclimate data collected, the project will study water-rock interaction, gases emanating from the deeper curst, and the geomicro- biology of the rocks of the plain. Once scientific objectives and set, budgets are developed, and funding is granted, successful implementation of projects requires careful planning, professional on-site staff, appropriate equip- ment, effective logistics, and accurate accounting. Photo by Tony Walton The authors gratefully acknowledge support of the National Science Foundation (NSF EAR 0923056 to The University of Kansas) and DOSECC, Inc. of Salt Lake City, Utah. Anthony W. Walton, University of Kansas, Lawrence, Kansas Kenneth G. Miller, Rutgers University, New Brunswick, N.J. Christian Koeberl, University of Vienna, Vienna, Austria John Shervais, Utah State University, Logan, Utah Steve Colman, University of Minnesota, Duluth, Duluth, Minnesota edited by Cathy Evans. Stephen Hickman, US Geological Survey, Menlo Park, California covers and design by mitch favrow. Will Clyde, University of New Hampshire, Durham, New Hampshire document layout by Pam Lerow and Paula Courtney. -
Microbial Dispersal Limitation to Isolated Soil Habitats in the Mcmurdo Dry Valleys
bioRxiv preprint doi: https://doi.org/10.1101/493411; this version posted December 13, 2018. The copyright holder for this preprint (which was not certified by peer review) is the author/funder. All rights reserved. No reuse allowed without permission. 1 Microbial dispersal limitation to isolated soil habitats in the McMurdo Dry Valleys 2 of Antarctica 3 4 Stephen D.J. Archer1,2, Kevin C. Lee2, Tancredi Caruso3, Teruya Maki4, Charles K. Lee5, 5 Don A. Cowan6, Fernando T. Maestre7, Stephen B. Pointing1,8 6 7 1 Yale-NUS College, National University of Singapore, Singapore 138527 8 2 Institute for Applied Ecology New Zealand, Auckland University of Technology, Auckland 9 1142, New Zealand 10 3 School of Biological Sciences and Global Institute for Food Security, Queen's University 11 Belfast, Belfast BT9 7BL, Northern Ireland, UK 12 4 Department of Chemical Engineering, Kanazawa University, Kanazawa 920-1192, Japan 13 5 International Centre for Terrestrial Antarctic Research, University of Waikato, Hamilton 14 3240, New Zealand 15 6 Centre for Microbial Ecology and Genomics, University of Pretoria, Pretoria 0002, South 16 Africa 17 7 Departamento de Biología y Geología, Física y Química Inorgánica, Escuela Superior de 18 Ciencias Experimentales y Tecnología, Universidad Rey Juan Carlos, C/ Tulipán s/n, 28933 19 Móstoles, Spain 20 8 Department of Biological Sciences, National University of Singapore, Singapore 117558 21 1 bioRxiv preprint doi: https://doi.org/10.1101/493411; this version posted December 13, 2018. The copyright holder for this preprint (which was not certified by peer review) is the author/funder. All rights reserved. -
Microclimate and Weathering Processes in the Area of Darwin
relationship between the folds reported by Burgess (in Findlay, R. H. 1978. Provisional report on the geology of the region press) and those described here cannot be determined from between the Renegar and Blue Glaciers, Antarctica. New Zealand present evidence. Antarctic Record, 1, 39-44. Skinner (1964, 1965) named the rocks at Mt. Madison the Grindley, G. W., McGregor, V. R., and Walcott, R. I. 1964. Outline Selborne Marble and distinguished them from the Shack- of the geology of the Nimrod-Beardmore-Axel Heiberg Glaciers region, Ross dependency. In Adie (Ed.), leton Limestone due to their higher metamorphic grade. He R. J. Antarctic geology. Amsterdam: North-Holland Publishing. suggested that they may be Precambrian in age, correlative with the Nimrod Group in the Miller Range (Grindley, Skinner, D. N. B. 1964, A summary of the geology of the region McGregor, and Walcott 1964). If this is the case, deforma- between Byrd and Starshot glaciers, south Victoria Land, In Adie (Ed.), Antarctic geology. Amsterdam: North-Holland tion at Mt. Madison is probably not related to the Shackle- R. J. Publishing. ton Limestone south of Byrd Glacier. Skinner, D. N. B. 1965. Petrographic criteria of the rock units To me, lithologies at Mt. Madison appear similar to those between the Byrd and Starshot Glaciers, south Victoria Land, of the Shackleton Limestone and pelitic Dick Formation Antarctica. New Zealand Journal of Geology and Geophysics, 8, (Skinner 1965), and I would suggest that the Selborne Mar- 292-303. ble is a metamorphosed equivalent of those two formations. Skinner, D. N. B. In press. Stratigraphy and structure of lower The metamorphic grade suggests an adjacent granitic pluton grade metasediments of Skelton Group, McMurdo Sound—Does north of Mt. -
Icing Mound on Sadlerochit River, Alaska
Short Papers and Notes ICING MOUND ON SADLERO- Sadlerochithas emerged from the CHIT RIVER, ALASKA* mountains, has arelatively low gra- dient and flows in a broad, braided bed Icing mounds- small to large domes, characterized by manyanastomosing mounds,and ridges resulting from an shallowchannels separated by bare, upwardarching of soiland ice asso- gravelly and bouldery bars (Fig. 2). AS ciated with fields of aufeis - have been is characteristic of all riversof the Arc- described in detailfor Siberia1. Icing tic Slope, the change from a single deep mounds have also been mentioned brief- channel to a braided pattern of many ly inconnection with aufeisfields in shallow channels allows the formation Alaskaby Leffigwell (ref. 2, p. 158) of an aufeis field every year near the and Taber (ref. 3, p. 1528; ref. 4, p. 249), mountain front. During the fall the but there is little descriptive literature shallow channels freeze early and the on this phenomenon in theNorth Amer- obstruction of the resulting ice causes ican Arctic. One such icing mound was the river to overflow its bars;this over- examined briefly by the author on June flow then freezes and by repeated freez- 25,1959 during the course of a trip down ing,overflow and freezingsuccessive the SadlerochitRiver in northeastern layers of ice are built up toform an Alaska (Fig. 1). aufeis field. Another factor contributing Fig. 1. Locationmap, Arctic Slope, Alaska. The SadlerochitRiver rises in the to the formation of large aufeis fields is Franklin Mountains of the eastern a source of water that persists for some Brooks Range and flows northwardin a time after freezingbegins. -
University Microfilms, a XEROX Company, Ann Arbor, Michigan
I I 72-15,173 BEHLING, Robert Edward, 1941- PEDOLOGICAL DEVELOPMENT ON MORAINES OF THE MESERVE GLACIER, ANTARCTICA. The Ohio State University in cooperation with Miami (Ohio) University, Ph.D., 1971 Geology University Microfilms,A XEROX Company , Ann Arbor, Michigan PEDOLOGICAL DEVELOPMENT ON MORAINES OF THE MESERVE GLACIER, ANTARCTICA DISSERTATION Presented In Partial Fulfillment of the Requirements for the Degree Doctor of Philosophy in the Graduate School of The Ohio State University By Robert E. Behling, B.Sc., M*Sc. ***** The Ohio State University 1971 Approved by Adv Department f Geology PLEASE NOTE: Some pages have indistinct print. Filmed as received. University Microfilms, A Xerox Education Company ACKNOWLEDGEMENTS This study could not have been possible without the cooperation of faculty members of the departments of agronomy, mineralogy, and geology, I wish to thank Dr. R. P. Goldthwait as chairman of my committee, Dr. L. P. Wilding and Dr. R. T. Tettenhorst as members of my reading committee, as well as Dr. C. B. Bull and Dr. K. R. Everett for valuable assistance and criticism of the manuscript. A special thanks is due Dr. K. R. Everett for guidance during that first field season, and to Dr. F. Ugolini who first introduced me to the problems of weathering in cold deserts. Numerous people contributed to this end result through endless discussions: Dr. Lois Jones and Dr. P. Calkin receive special thanks, as do Dr. G. Holdsworth and Maurice McSaveney. Laboratory assistance was given by Mr. Paul Mayewski and R. W. Behling. Field logistic support in Antarctica was supplied by the U.S. -
Deglacial and Postglacial Evolution of the Pingualuit Crater Lake Basin, Northern Québec (Canada)
Geomorphology 248 (2015) 327–343 Contents lists available at ScienceDirect Geomorphology journal homepage: www.elsevier.com/locate/geomorph Deglacial and postglacial evolution of the Pingualuit Crater Lake basin, northern Québec (Canada) Pierre-Arnaud Desiage a,b,⁎, Patrick Lajeunesse b,c, Guillaume St-Onge a,b, Alexandre Normandeau b, Grégoire Ledoux c,HervéGuyarda,b,d, Reinhard Pienitz c a Institut des sciences de la mer de Rimouski (ISMER), Canada Research Chair in Marine Geology, Université du Québec à Rimouski, Rimouski, Canada b GEOTOP Research Center, Canada c Centre d'études Nordiques (CEN) & Département de Géographie, Université Laval, Québec, Canada d Institut de Physique du Globe de Paris, Sorbonne Paris Cité, Université Paris Diderot, UMR CNRS 7154, Paris, France article info abstract Article history: The Pingualuit Crater, located in the Ungava Peninsula (northern Québec, Canada) is a 1.4-Ma-old impact crater Received 15 January 2015 hosting a ~245-m-deep lake. The lake has a great potential to preserve unique paleoclimatic and paleoecological Received in revised form 9 July 2015 sedimentary records of the last glacial/interglacial cycles in the terrestrial Canadian Arctic. In order to investigate Accepted 10 July 2015 the stratigraphy in the lake and the late Quaternary glacial history of the Pingualuit Crater, this study compiles Available online 29 July 2015 data from three expeditions carried out in May 2007 (~9-m-long sediment core), in August 2010 (~50 km of seismic lines), and in September 2012 (high-resolution terrestrial LiDAR topography of the inner slopes). Despite Keywords: fi lake levels the weak penetration (~10 m) of the 3.5-kHz subbottom pro ling caused by the presence of boulders in the Mass movements sedimentary column, seismic data coupled with the stratigraphy established from the sediment core enabled Laurentide Ice Sheet the identification of two glaciolacustrine units deposited during the final stages of the Laurentide Ice Sheet Sedimentological processes (LIS) retreat in the crater. -
Historical and Recent Aufeis, the Indigirka River Basin (Russia)
1 Historical and recent aufeis, the Indigirka river basin 2 (Russia) 3 *Olga Makarieva1,2,, Andrey Shikhov3, Nataliia Nesterova2,4, Andrey Ostashov2 4 1Melnikov Permafrost Institute of RAS, Yakutsk 5 2St. Petersburg State University, St. Petersburg 6 3Perm State University, Perm 7 4State Hydrological institute, St. Petersburg 8 RUSSIA 9 *[email protected] 10 Abstract: A detailed spatial geodatabase of aufeis (or naleds in Russian) within the 11 Indigirka River watershed (305 000 km2), Russia, was compiled from historical Russian 12 publications (year 1958), topographic maps (years 1970–1980’s), and Landsat images (year 13 2013-2017). Identification of aufeis by late-spring Landsat images was performed with a semi- 14 automated approach according to Normalized Difference Snow Index (NDSI) and additional 15 data. After this, a cross-reference index was set for each aufeis, to link and compare historical 16 and satellite-based aufeis data sets. 17 The aufeis coverage varies from 0.26 to 1.15% in different sub-basins within the 18 Indigirka River watershed. The digitized historical archive (Cadastre, 1958) contains the 19 coordinates and characteristics of 896 aufeis with total area of 2064 km2. The Landsat-based 20 dataset included 1213 aufeis with a total area of 1287 km2. Accordingly, the satellite-derived 21 total aufeis area is 1.6 times less than the Cadastre (1958) dataset. However, more than 600 22 aufeis identified from Landsat images are missing in the Cadastre (1958) archive. It is 23 therefore possible that the conditions for aufeis formation may have changed from the mid- 24 20th century to the present. -
Continental Field Manual 3 Field Planning Checklist: All Field Teams Day 1: Arrive at Mcmurdo Station O Arrival Brief; Receive Room Keys and Station Information
PROGRAM INFO USAP Operational Risk Management Consequences Probability none (0) Trivial (1) Minor (2) Major (4) Death (8) Certain (16) 0 16 32 64 128 Probable (8) 0 8 16 32 64 Even Chance (4) 0 4 8 16 32 Possible (2) 0 2 4 8 16 Unlikely (1) 0 1 2 4 8 No Chance 0% 0 0 0 0 0 None No degree of possible harm Incident may take place but injury or illness is not likely or it Trivial will be extremely minor Mild cuts and scrapes, mild contusion, minor burns, minor Minor sprain/strain, etc. Amputation, shock, broken bones, torn ligaments/tendons, Major severe burns, head trauma, etc. Injuries result in death or could result in death if not treated Death in a reasonable time. USAP 6-Step Risk Assessment USAP 6-Step Risk Assessment 1) Goals Define work activities and outcomes. 2) Hazards Identify subjective and objective hazards. Mitigate RISK exposure. Can the probability and 3) Safety Measures consequences be decreased enough to proceed? Develop a plan, establish roles, and use clear 4) Plan communication, be prepared with a backup plan. 5) Execute Reassess throughout activity. 6) Debrief What could be improved for the next time? USAP Continental Field Manual 3 Field Planning Checklist: All Field Teams Day 1: Arrive at McMurdo Station o Arrival brief; receive room keys and station information. PROGRAM INFO o Meet point of contact (POC). o Find dorm room and settle in. o Retrieve bags from Building 140. o Check in with Crary Lab staff between 10 am and 5 pm for building keys and lab or office space (if not provided by POC). -
Hydrologic and Mass-Movement Hazards Near Mccarthy Wrangell-St
Hydrologic and Mass-Movement Hazards near McCarthy Wrangell-St. Elias National Park and Preserve, Alaska By Stanley H. Jones and Roy L Glass U.S. GEOLOGICAL SURVEY Water-Resources Investigations Report 93-4078 Prepared in cooperation with the NATIONAL PARK SERVICE Anchorage, Alaska 1993 U.S. DEPARTMENT OF THE INTERIOR BRUCE BABBITT, Secretary U.S. GEOLOGICAL SURVEY ROBERT M. HIRSCH, Acting Director For additional information write to: Copies of this report may be purchased from: District Chief U.S. Geological Survey U.S. Geological Survey Earth Science Information Center 4230 University Drive, Suite 201 Open-File Reports Section Anchorage, Alaska 99508-4664 Box 25286, MS 517 Denver Federal Center Denver, Colorado 80225 CONTENTS Abstract ................................................................ 1 Introduction.............................................................. 1 Purpose and scope..................................................... 2 Acknowledgments..................................................... 2 Hydrology and climate...................................................... 3 Geology and geologic hazards................................................ 5 Bedrock............................................................. 5 Unconsolidated materials ............................................... 7 Alluvial and glacial deposits......................................... 7 Moraines........................................................ 7 Landslides....................................................... 7 Talus.......................................................... -
The Dynamics and Mass Budget of Aretic Glaciers
DA NM ARKS OG GRØN L ANDS GEO L OG I SKE UNDERSØGELSE RAP P ORT 2013/3 The Dynamics and Mass Budget of Aretic Glaciers Abstracts, IASC Network of Aretic Glaciology, 9 - 12 January 2012, Zieleniec (Poland) A. P. Ahlstrøm, C. Tijm-Reijmer & M. Sharp (eds) • GEOLOGICAL SURVEY OF D EN MARK AND GREENLAND DANISH MINISTAV OF CLIMATE, ENEAGY AND BUILDING ~ G E U S DANMARKS OG GRØNLANDS GEOLOGISKE UNDERSØGELSE RAPPORT 201 3 / 3 The Dynamics and Mass Budget of Arctic Glaciers Abstracts, IASC Network of Arctic Glaciology, 9 - 12 January 2012, Zieleniec (Poland) A. P. Ahlstrøm, C. Tijm-Reijmer & M. Sharp (eds) GEOLOGICAL SURVEY OF DENMARK AND GREENLAND DANISH MINISTRY OF CLIMATE, ENERGY AND BUILDING Indhold Preface 5 Programme 6 List of participants 11 Minutes from a special session on tidewater glaciers research in the Arctic 14 Abstracts 17 Seasonal and multi-year fluctuations of tidewater glaciers cliffson Southern Spitsbergen 18 Recent changes in elevation across the Devon Ice Cap, Canada 19 Estimation of iceberg to the Hansbukta (Southern Spitsbergen) based on time-lapse photos 20 Seasonal and interannual velocity variations of two outlet glaciers of Austfonna, Svalbard, inferred by continuous GPS measurements 21 Discharge from the Werenskiold Glacier catchment based upon measurements and surface ablation in summer 2011 22 The mass balance of Austfonna Ice Cap, 2004-2010 23 Overview on radon measurements in glacier meltwater 24 Permafrost distribution in coastal zone in Hornsund (Southern Spitsbergen) 25 Glacial environment of De Long Archipelago -
Hydrological Connectivity from Glaciers to Rivers in the Qinghai–Tibet Plateau: Roles of Suprapermafrost and Subpermafrost Groundwater
Hydrol. Earth Syst. Sci., 21, 4803–4823, 2017 https://doi.org/10.5194/hess-21-4803-2017 © Author(s) 2017. This work is distributed under the Creative Commons Attribution 3.0 License. Hydrological connectivity from glaciers to rivers in the Qinghai–Tibet Plateau: roles of suprapermafrost and subpermafrost groundwater Rui Ma1,2, Ziyong Sun1,2, Yalu Hu2, Qixin Chang2, Shuo Wang2, Wenle Xing2, and Mengyan Ge2 1Laboratory of Basin Hydrology and Wetland Eco-restoration, China University of Geosciences, Wuhan, 430074, China 2School of Environmental Studies, China University of Geosciences, Wuhan, 430074, China Correspondence to: Rui Ma ([email protected]) and Ziyong Sun ([email protected]) Received: 5 January 2017 – Discussion started: 15 February 2017 Revised: 29 May 2017 – Accepted: 7 August 2017 – Published: 27 September 2017 Abstract. The roles of groundwater flow in the hydrologi- 1 Introduction cal cycle within the alpine area characterized by permafrost and/or seasonal frost are poorly known. This study explored Permafrost plays an important role in groundwater flow and the role of permafrost in controlling groundwater flow and thus hydrological cycles of cold regions (Walvoord et al., the hydrological connections between glaciers in high moun- 2012). This is especially true for the mountainous headwaters tains and rivers in the low piedmont plain with respect to of large rivers. In these areas interactive processes between hydraulic head, temperature, geochemical and isotopic data, permafrost and groundwater influence water resource man- at a representative catchment in the headwater region of agement, engineering construction, biogeochemical cycling, the Heihe River, northeastern Qinghai–Tibet Plateau. The and downstream water supply and conservation (Cheng and results show that the groundwater in the high mountains Jin, 2013).