Publication information

Geological Survey of Canada
Open File 7991

Reconnaissance sub-bottom profiling survey at Lac Caste, Quebec

Brooks, G.R.

© Her Majesty the Queen in Right of Canada, as represented by the Minister of Natural Resources Canada, 2016

doi:10.4095/297471

Publications in this series have not been edited; they are released as submitted by the author.

View the licence agreement at http://data.gc.ca/eng/open-government-licence-canada

Recommended citation

Brooks, G.R., 2016. Reconnaissance sub-bottom profiling survey at Lac Caste, Quebec; Geological Survey of Canada, Open File 7991, 1 .zip file. doi:10.4095/297471
  
Contents

As part of a reconnaissance sub-bottom acoustic profiling (SAP) survey, eleven SAP were collected from Lac Caste, Quebec, on July 10, 2014.  The returns with the best penetration of the sub-bottom were collected in the small bay in the southern area of the lake and along the immediate south and west sides of the main basin.  There was no penetration of the sub-bottom over most of the central and eastern areas of the main basin.  Three facies are present within the SAP returns that represent lacustrine, glaciolacustrine and mass movement deposits.  The profiles collected from Lac Caste demonstrate the presence of mass movement deposits within this basin.  

Directory structure

Readme.rtf
of-7991.pdf
of-7991_Appendix A – 11 folders – one for each the 11 sub-bottom profiles collected from Lac Caste, Quebec, on July 10, 2014.
Each folder contains:
	.bmp raster image of the sub-bottom profile.
	.kea file containing the date and time of data collection, water depth, and geographical coordinates of the profile routes.  The .kea file is an ASCII format and can be opened through a spreadsheet software, such as Microsoft Excel®.
	.keb file containing the raw data of sub-bottom profile.  This is a Knudsen Engineering Ltd.™ proprietary format that can be opened with Knudsen PostSurvey™ software, which can be downloaded directly from Knudsen Engineering (http://knudseneng.com/software/postsurvey).  
	.sgy format file also containing the data of sub-bottom profile. This file has been created by conversion of the .keb file.
PostSurveyV1_61.exe:
This is an .exe file that will load PostSurvey version 1.61 on the user’s computer.  This software allows the user to open and view the .keb files.

Adobe® Reader® are either registered trademarks or trademarks of Adobe Systems Incorporated in the United States and/or other countries. Microsoft Excel® are either registered trademarks or trademarks of Microsoft Incorporated in the United States and/or other countries.  Knudsen 320M™ and Knudsen PostSurvey™ are either registered trademarks or trademarks of Knudsen Engineering Ltd.™ in the United States and/or other countries.

PostSurvey v1.61 is proprietary property of Knudsen Engineering Ltd.™ and is intended for authorized use only.  Any use, other than the specific purpose of playback/displaying Knudsen data is prohibited.  PostSurvey v1.61 has been included in the download of OF-7991 with the permission of Knudsen Engineering Ltd.™.  The software has been provided for the convenience of the OF-7991 user.  A user of this software does so entirely at their own risk. 

System requirements

PC with 486 or greater processor, or Mac® with OS® X v. 10.2.2 or later; Adobe® Reader® v. 6.0 or later; video resolution of 1280 x 1024.

Author contact information

greg.brooks@canada.ca
Greg Brooks
Geological Survey of Canada
601 Booth Street
Ottawa, Ontario
Canada
K1A 0E8

Availability information

This publication is available for free download through GEOSCAN (http://geoscan.nrcan.gc.ca/).