Open AccessCoastal geoscience field work near Iqaluit, Nunavut, 2009-2011
Author(s) -
S. Hatcher,
D L Forbes,
Gavin K. Manson
Publication year - 2014
Language(s) - English
Resource type - Reports
DOI - 10.4095/295628
Subject(s) - intertidal zone , geology , transect , cobble , bay , oceanography , landform , inlet , sediment , geomorphology , shore , hydrology (agriculture) , habitat , geotechnical engineering , ecology , biology
This report describes data collected during five field trips to Koojesse Inlet, Nunavut, between 2009 and 2011. These trips have expedition numbers 2009306, 2010307, 2011303, and 2011307 (includes 2 trips). Koojesse Inlet is in the northwestern end of FrobisherBay on Baffin Island. Data were collected primarily on foot within the intertidal, but there are some boat-based datasets associated with expedition 2011307. Data collected include: RTK-GPS transects, sidescan sonar lines, single beam sonar lines, tide and wave recorder deployments, current profilerdeployments, surface and grab sediment samples, underwater drop camera lines, and shallow sub-bottom profile lines. Resultsshow a complex intertidal zone characterized by a higher slope beachface and ank face at the edge of the low-slope tidal at terrace, with varying concentrations of boulders. Sediment is a mixture of relict glaciomarine overlain by a shallow reworked sand/mud surficial layer. Sediment in thenearshore varies from fine silts to cobble/gravel deposits in the more exposed areas. This study was unable to resolve significant amounts of erosion on the tidal at surface, but the geomorphological evidence is irrefutably indicative of an erosional landform.