New master projects in physical geography spring Svein Olaf Dahl
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1 New master projects in physical geography spring 2018 Svein Olaf Dahl
2 Geographical extent of NW European ice sheets during the last glacial maximum (LGM), about 20 ka BP. Svartisen Renså/Rolla Etter Svendsen et al. (2004)
3 New glacier related master projects in the Svartisen area, northern Norway spring 2018 Steigen Kråktindbreen Bodø Blåmannsisen Sarek Sarek Sulitjelmaisen Neverdalen Selstaddalen Glombreen Fonndalsbreen/ Engabreen Blokkfjellbreen Svartisheibreen Vestre Svartisen Austre Svartisen Ongoing glacier related master projects New glacier related master projects Gåbrokbreen
4 Master project in physical geography: Glacier and climate history at Engabreen/Fonndalsbreen, Vestre Svartisen; comparison between the «Little Ice Age» and the suggested Younger Dryas Supervisors: Svein Olaf Dahl Pål Ringkjøb Nielsen & Kristian Vasskog Methods: Air photos, historical photos and observations, GIS, drone, quaternary geological mapping, coring, stratigraphical investigations, ecco sounder etc. Fieldwork ca. 4 weeks. Dating: AMS 14C dating, lichenometry, link to sea level. Engabreen Pre-LIA maximum sub-till palaeosol with tree stems Fonndalsbreen LIA max, Finse Event, Erdalen Event? Field-based master project. Access to a car is an advantage. Objective: Reconstruct, date and compare the glacier and climate history of Engabreen/ Fonndalsbreen during the Little Ice Age and Younger Dryas. LIA max YD? YD? Holandsfjorden YD ice margin/sea level(?) Why is the suggested Younger Dryas ice margin just beyond the glacier margin during the Little Ice?
5 Two master projects in physical geography along the southern margin of Vestre Svartisen: Glacier and climate history during the «Little Ice Age» at either Svartisheibreen or at Blokkfjellbreen, southern part of Vestre Svartisen. Supervisors: Svein Olaf Dahl, Rannveig Øvrevik Skoglund, Pål Ringkjøb Nielsen & Ben Robson Blokkfjellbreen Svartisheibreen Pikhaughytta N Glomdalshytta Melfjord Tverråga Bridge 1 km
6 Master project in physical geography: Glacier fluctuations, climate and glacier lake outburst floods (GLOFs) during the Holocene with especial emphasis on the «Little Ice Age» at Svartisfjellbreen, Vestre Svartisen. Supervisors: Svein Olaf Dahl Rannveig Øvrevik Skoglund, Pål Ringkjøb Nielsen & Ben Robson Methods: Air photos, remote sensing, historical photos and observations, GIS, drone, quaternary geological mapping, coring, stratigraphical investigations, echo sounder etc. Fieldwork ca. 4 weeks. Dating: AMS 14C dating, lichenometry Heiavatnet Alt. 785 m Svartisheibreen Previous overflow gaps from icedammed lake Suggested LIA glacier max Alt. 779 m Alt. 774 m Alt. 768 m Slukta Potential glacial lake outburst floods (GLOFs) Suggested overflow gap towards Storvatnet Meltwater drainage at present 500 m N
7 Master project in physical geography: Glacier fluctuations, climate and glacier lake outburst floods (GLOFs) during the Holocene with especial emphasis on the «Little Ice Age» at Svartisfjellbreen, Vestre Svartisen. Field-based master project. Access to a car is an advantage. Objective(s) => Reconstruct and date the glacier and climate history of Svartisheibreen during the «Little Ice Age» glacierization. Is it possible to record glacial lake outburst floods (GLOFs) in Storvatnet? Svartisheibreen Suggested LIA glacier max Minor GLOFs occurred AD 1989, 1991, 1999(?), 2014 & 2016 Old marginal moraines Overflow Gap (OG) Spillover for GLOFs Alt. 590 m Coring site? Melfjordbotnen Glacier meltwater drainage route to Storvatnet Outlet Coring sites?
8 Master project in physical geography: Glacier and climate history during the «Little Ice Age» at Blokkfjellbreen, Vestre Svartisen. LIA outer Moraines? Meltwater channel Blokkfjellbreen glacier foreland LIA glacier maximum? Supervisors: Svein Olaf Dahl Rannveig Øvrevik Skoglund, Pål Ringkjøb Nielsen & Ben Robson Methods: Air photos, remote sensing, historical photos and observations, GIS, drone, quaternary geological mapping, coring, stratigraphical investigations, echo sounder etc. Fieldwork ca. 4 weeks. Coring Sites? Dating: AMS 14C dating, lichenometry Field-based master project. Access to a car is an advantage. N Glomdalshytta Objective => Reconstruct and date the glacier and climate history of Blokkfjellbreen and Flatisen during the «Little Ice Age» glacierization. 200 m Bridge
9 Master project in physical geography: Glacier fluctuations and palaeoclimatic reconstruction at Gåbrokbreen, SE Austre Svartisen, during the Holocene with special focus on the «Little Ice Age». Supervisors: Svein Olaf Dahl Pål Ringkjøb Nielsen & Rannveig Skoglund Methods: Air photos, remote sensing, historical photos and observations, GIS, drone, quaternary geological mapping, coring, stratigraphical investigations, echo sounder etc. Fieldwork ca. 4 weeks. Car an advantage. Dating: AMS 14C dating, lichenometry Blakkådalen Bjellådalen Gåbrokbreen Local watershed Rundtind x Alt 973 m x Gåbrok Alt 1098 m Alt 631 m Øvre (upper) Brundalsvatn Coring sites Birch tree limit at alt. C. 600 m Alt 360 m Nedre (lower) Brundalsvatn
10 Master project in physical geography: Glacier fluctuations and palaeoclimatic reconstruction at Gåbrokbreen, SE Austre Svartisen, during the Holocene with special focus on the «Little Ice Age Objective: Reconstruct glacier- and climate fluctuations at Gåbrokbreen during the Holocene with special focus on the «Little Ice age». Photo shows Gåbrokbreen and the most important surrounding valleys, lakes and glaciers at present. Rauvassdalen Tverrådalen Brundalen Austerdalsisen Øvre Brundalsvatnet Gåbrok X Alt 1098 m Blakkåtinden X Alt 1300 m Nedre Brundalsvatnet Helenvatnet Blakkådalen Rundtinden X Alt 973 m Gåbrokbreen Austre Svatrtisen Bjellådalen From Norge i Bilder.
11 Marstrander, 1911
12 Two (2) master projects in physical geography: Reconstruction, dating and climatic implications of the Late Wichselian continental ice sheet during the Skarpnes Event (Older Dryas) and the formation of thetromsø-lyngen moraines (Younger Dryas) at Renså in Skånland and on Rolla, southern Troms, northern Norway Supervisors: Svein Olaf Dahl Pål Ringkjøb Nielsen & Kristian Vasskog Methods: Air photos, lidar, GIS, drone, quaternary geological mapping, coring, stratigraphical investigations, etc. Fieldwork ca. 4 weeks. Acess to a car is an advantage. Dating: AMS 14C dating It is an advantage with two students working in the same area. Objectives project 1: - To map the extent of the Skarpnes Event glacier advance in the Renså Rolla area. - To date the start, maximum and termination of the Skarpnes Event glacier advance in the Renså-Rolla area Objectives project 2: - To map the extent of the Tromsø-Lyngen moraines in the Renså-Rolla area. - To date the start, maximum and termination of the glacier advance depositing the Tromsø-Lyngen moraines in the Renså-Rolla area.
13 Overview of the Renså-Rolla Older- and Younger Dryas glacier margins ROLLA Rolla alt. 926 m X Cirque glaciers Alt. 180 m Photo 3 Strupen OG 164 m Skipsvatnet (alt m) Alt. 200 m Sørrollnes Alt. 200 m? Alt. 150 m Older Dryas (Skarpnes Event) Younger Dryas (Tromsø-Lyngen) Astafjorden Alt. 115 m Sandstrand? Renså?? Photo 1 & 2 Older Dryas? X Svellen alt. 734 m Bakåsvatnet (alt. 161 m) Pollen/plantmacros/ chironomids Bog dammed by Skarpnes Event (alt. 96 m)? OG Djupvassmyra (alt. 225 m)? Younger Dryas Rensåvatnet (alt. 16 m)
14 Photo 1: Sediment outcrops and gravel pit along (river) Rensåelva, Skånland in Troms Renså gravel pit with marine shells Renså Vågsfjorden Rensåvatnet Leverjo- Myra (bog) Shells just above bedrock Natural sediment (avalanche) outcrops with marine shells
15 Photo 2: Natural sediment outcrops and gravel pit along Rensåelven, Skånland Renså gravel pit Shells just above bedrock Natural sediment (avalanche) outcrops Rensåelva
16 Photo 3: OG Strupen, Skipsvatnet - Rolla Skipsvatnet m OG Strupen Alt. 164 m Ørnlia bog Alt. 119 m
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