Metadata: 3D hydrostatigraphic model of the South Nation River watershed

Metadata NAP : more info

Identification

Abstract

The Geological Survey of Canada has produced a hydrostratigraphic model of the South Nation watershed region, south-eastern Ontario. The model was developed under the Geological Survey of Canada's Groundwater Program in collaboration with partner agencies (e.g., South Nation Conservation Authority, Ontario Geological Survey, Ontario Ministry of the Environment and Ontario Ministry of Natural Resources). The model consists of a series of grid files that define the top surfaces of 7 Quaternary stratigraphic units plus bedrock. The modelled units are, stratigraphically from oldest to youngest: 1- Paleozoic bedrock, 2 - Sub-till sediment, 3 - Sandy silt till, 4 - Glaciofluvial (esker) sediment, 5 - Basin mud, 6 - Basin sand, 7 - Organic deposits, 8 - Recent deposits.

Status:

completed

Title

3D hydrostatigraphic model of the South Nation River watershed

Date

2009-01-01 ( register

publication)

Date

2009-01-01 ( register

creation)

Edition

Edition date

Citation group

principalInvestigator

Name

Charles Logan

Organisation

Government of Canada; Natural Resources Canada; Geological Survey of Canada - GSC Central Canada

Position

GIS Specialist

Information

Address	Delivery point : 601 Booth Street 601 Booth Street City : Ottawa Ottawa Administrative region : Ontario Ontario Postal code : Country : Canada Canada Email charles.logan@canada.ca
Telephone	voice; 1 (613) 9477068
Online Resource

Citation group

originator

Name

Charles Logan

Organisation

Government of Canada; Natural Resources Canada; Geological Survey of Canada - GSC Central Canada

Position

GIS Specialist

Information

Address	Delivery point : 601 Booth Street 601 Booth Street City : Ottawa Ottawa Administrative region : Ontario Ontario Postal code : Country : Canada Canada Email charles.logan@canada.ca
Telephone	voice; 1 (613) 9477068
Online Resource

Citation group

custodian

Name

Francois Letourneau

Organisation

Government of Canada; Natural Resources Canada; Geological Survey of Canada - GSC Quebec

Position

Information

Address	Delivery point : 490, rue de la Couronne, 3e étage 490, rue de la Couronne, 3e étage City : Québec Québec Administrative region : Québec Québec Postal code : Country : Canada Canada Email francois.letourneau@canada.ca
Telephone	voice; 1 (418) 6543826
Online Resource

Citation group

pointOfContact

Name

Organisation

Government of Canada; Natural Resources Canada; Geological Survey of Canada

Position

Information

Address	Delivery point : City : Administrative region : Postal code : Country : Email nrcan.gsc-geosciencedata-donneesgeoscience-cgc.rncan@canada.ca
Telephone
Online Resource

Presentation form

modelDigital

Series

Open File6206

Related publication

Logan, C., Cummings, D.I., Pullan, S., Pugin, A., Russell, H.A.J. and Sharpe, D.R. 2009: Hydrostratigraphic model of the South Nation watershed region, south-eastern Ontario; Geological Survey of Canada, Open File 6206, 1 DVD.

Goals

This 3D model was used to help characterize the geology of esker aquifers and the overlying and underlying mud rich strata in the South Nation watershed.

Keyword(s)

Thesaurus

Title

NRCan - GSC - Hydrogeology - Thesaurus

Date

2009-01-01 ( register

creation)

Date

2016-12-01 ( register

publication)

Edition

Edition date

Citation group

custodian
Name
Organisation	Government of Canada; Natural Resources Canada; Geological Survey of Canada
Position
Information

Type

place

Term

South Nation River

Thesaurus
Type
Term	Groundwater

Thesaurus
Type
Term	Aquifer

Thesaurus
Type
Term	Watershed

Thesaurus

Title

NRCan - GSC - Hydrogeology - Thesaurus

Date

2009-01-01 ( register

creation)

Date

2016-12-01 ( register

publication)

Edition

Edition date

Citation group

custodian
Name
Organisation	Government of Canada; Natural Resources Canada; Geological Survey of Canada
Position
Information

Type

theme

Term

Quaternary

Thesaurus

Title

NRCan - GSC - Hydrogeology - Thesaurus

Date

2009-01-01 ( register

creation)

Date

2016-12-01 ( register

publication)

Edition

Edition date

Citation group

custodian
Name
Organisation	Government of Canada; Natural Resources Canada; Geological Survey of Canada
Position
Information

Type

product

Term

3D Model

Spatial representation	grid
Resolution
Language	eng; CAN
Character encoding	utf8
Thematic category	geoscientificInformation
Extent	-76.360578000,44.484979000;-74.317535000,45.644025000
Supplemental information	Each unit has a companion confidence map that is based on the proximity to, and relative quality of data control points that were used to interpolate its surface.

Distribution

Specific information related to data distribution

Format
Name	GEOTIFF
Version	not applicable

Distributor

Contact

distributor

Name

Eric Boisvert

Organisation

Government of Canada; Natural Resources Canada; Geological Survey of Canada - GSC Quebec

Position

Information

Address	Delivery point : 490, rue de la Couronne, 3e étage 490, rue de la Couronne, 3e étage City : Québec Québec Administrative region : Québec Québec Postal code : Country : Canada Canada Email eric.boisvert2@canada.ca
Telephone	voice; 1 (418) 6543705
Online Resource

Distributor

Contact

pointOfContact

Name

Organisation

Government of Canada; Natural Resources Canada; Geological Survey of Canada

Position

Information

Address	Delivery point : City : Administrative region : Postal code : Country : Email nrcan.gsc-geosciencedata-donneesgeoscience-cgc.rncan@canada.ca
Telephone
Online Resource

Transfer options

Quality

Quality description scope : register

dataset

Lineage

Message Date lineage
Lineage is the description of the sources and steps used to create the current dataset.

Introduction
3D model creation Stratigraphy definition

Process step

Sources

Archival borehole log data was interpreted and reclassified into a stratigraphic database format using a rule-based expert system. Stratigraphic database contacts were combined with digital geologic map polygons using a 10 meter Digital Elevation Model as a common elevation standard. Surfaces were produced using Natural Neighbour interpolations in MapInfo Professional® with Vertical Mapper™. Database management, data analysis and programming were completed using Microsoft® Access 2003© and Visual Basic for Applications©.

A 1:50 000 scale digital compilation of geological mapping (Gao et al., 2002) served as a basis for 3D structural modelling. In addition to helping to develop a clearer understanding of the processes of subglacial and ice-contact sedimentation, cored boreholes called ""Golden Spikes"" (Sharpe et al., 2003) are important sources of reliable calibration for 19 companion seismic profiles. Numerous aggregate pits were also studied and used to develop an understanding of depositional processes and related esker architecture (Cummings et al., 2008; Cummings and Russell, 2007; Russell and Cummings, 2009). The elevations of all subsurface, mapping and survey data were standardized to a common digital elevation model (DEM) surface at 10 meter cell resolution provided by OMNR (OMNR, 2006). An extensive archival database of MOE water well records, geotechnical boreholes and municipal water source investigation borehole reports was compiled by SNCA and used to provide invaluable regional data coverage.

For the purpose of 3D modelling, 8 stratigraphic units are defined from oldest to youngest: 1) Paleozoic bedrock: Paleozoic carbonate bedrock underlying the model area. 2) Sub-till sediment: Coarse-grained sediment can be present below the regional diamicton. Often <1m in thickness, these subtill sediment packages may be laterally extensive. 3) Sandy silt till: Massive overconsolidated diamicton that drapes bedrock in the southern portion of the basin and pinches out toward the north. It has a sandy-silt till texture with sub-angular to angular clasts of predominately locally-derived carbonate mudstone. 4) Glaciofluvial (esker) sediment: Eskers were formed sub-glacially in long (<50km) stream conduits. Esker deposits, although stratigraphically younger than the regional diamicton, are largely floored by bedrock except toward their terminal outwash fans where they may overlie diamicton. 5) Basin mud: As glaciers retreated further north, a pro-glacial lake formed that eventually intermingled with marine waters forming the Champlain Sea. This inland sea remained for ~2000 years during which time thick mud (>40m) deposits accumulated. 6) Basin sand: High ground in the basin (i.e., esker tops) and sediment transported from melting glaciers were reworked by wave action to produce sandy beach deposits. 7) Organic deposits: Bog deposits. 8) Recent deposits: Alluvial and aeolian deposits.

Archival borehole log data.

Technical details and constraints

File identifier	6b48ac85-adc2-8741-2039-14b6b8582dfb
Language	eng; CAN
Character encoding	utf8
Hierarchical classification	dataset
Date	2017-10-26
Metadata standard	North American Profile of ISO 19115:2003 - Geographic information - Metadata
Version	CAN/CGSB-171.100-2009
Constraints
Update frequency	asNeeded

Regionalisation

Metadata are available in those languages (You can use language menu item in the top menu bar to switch language):

Language code	Pays	Encodage
French	Canada	utf8

Geographic Reference System

Reference System code	EPSG:26918
Register	http://www.epsg-registry.org/
Version	6.14

Metadata Contact

author

Name

Francois Letourneau

Organisation

Government of Canada; Natural Resources Canada; Geological Survey of Canada - GSC Quebec

Position

Information

Address	Delivery point : 490, rue de la Couronne, 3e étage 490, rue de la Couronne, 3e étage City : Québec Québec Administrative region : Québec Québec Postal code : Country : Canada Canada Email francois.letourneau@canada.ca
Telephone	voice; 1 (418) 6543826
Online Resource

pointOfContact

Name

Organisation

Government of Canada; Natural Resources Canada; Geological Survey of Canada

Position

Information

Address	Delivery point : City : Administrative region : Postal code : Country : Email nrcan.gsc-geosciencedata-donneesgeoscience-cgc.rncan@canada.ca
Telephone
Online Resource