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Northern Resources Development
The Bowser / Sustut project: Earth Sciences Sector
Introduction, overview of
project status, and
highlights of recent research
Ministry of Energy and Mines
Resource Development
And Geoscience Branch
Northern Resources Development
Carol A. Evenchick
[email protected]
With contributions from
The Bowser/Sustut
project team
Prepared for the Bowser
project workshop, Feb. 21,
2006, Calgary
CAE Feb 21 ‘06
Ministry of Energy and Mines
Resource Development And Geoscience
Branch
Northern Resources Development
Ministry of Energy and Mines
Resource Development
And Geoscience Branch
Presentation Outline
• Brief overview of the project and its status
• Brief stratigraphic and structural frameworks (see
past presentations for more detail)
• Highlights of 2005 fieldwork
• Highlights of other research and activities in 2005
• New publications, upcoming publications
• Future work
CAE Feb 21 ‘05
‘06
Northern Resources Development
Brief Bowser/Sustut project overview
Ministry of Energy and Mines
Resource Development
And Geoscience Branch
What, where, when, and why
INTEGRATED PETROLEUM RESOURCE POTENTIAL AND
GEOSCIENCE STUDIES IN THE BOWSER AND SUSTUT BASINS
A collaborative project: of the
Geological Survey of Canada,
B.C. Ministry of Energy and Mines
Simon Fraser University, U of Alberta
Location: North-central British Columbia
General geology: Jurassic and Cretaceous marine
and non marine basins; fold and thrust belt structure
Project goals include: spark private sector
investment in the Bowser/Sustut region by
increasing data and knowledge of energy
resources and geological framework
Time frame: April 1 2003 thru March 31 2007
CAE Feb 21 ‘06
Northern Resources Development
Ministry of Energy and Mines
Resource Development
And Geoscience Branch
Brief Bowser/Sustut project overview
Who
Collaborative project between the Geological Survey of Canada and the
British Columbia Ministry of Energy and Mines, with contributions from
Simon Fraser University, University of Alberta, and Geoscience BC
Research, technical, and outreach team (2005, 2006)
Judith Baker (GSC, Sidney)
Kirk Osadetz (GSC, Calgary)
Zhuoheng Chen (GSC, Calgary)
Paul O’Sullivan (Apatite to Zircon Inc.)
Randy Enkin (GSC, Sidney)
Terry Poulton (GSC, Calgary)
Carol Evenchick (GSC, Vancouver)
Marianne Quat (GSC, Vancouver)
Filippo Ferri (BCMEM, Victoria)
David Ritcey (GSC, Vancouver)
Peter Hannigan (GSC, Calgary)
Gareth Smith (Simon Fraser Univ.)
Jamel Joseph (GSC, Vancouver)
David Snyder (GSC, Ottawa)
Carmel Lowe (GSC, Sidney)
Lavern Stasiuk (GSC, Calgary)
David Mate (GSC, Sidney)
Arthur Sweet (GSC, Calgary)
Margot McMechan (GSC, Calgary)
Robert Turner (GSC, Vancouver)
Vicki McNicoll (GSC, Ottawa)
John Waldron (University of Alberta)
Peter Mustard (Simon Fraser Univ.)
Carol Wagner (GSC, Vancouver)
NO
ETS
US
SOMMES PR
CAE Feb 21 ‘06
Northern Resources Development
Ministry of Energy and Mines
Resource Development
And Geoscience Branch
Bowser-Sustut Current Knowledge
Project Status Feb 2006
FINISHED 3RD YEAR OF FIELDWORK
58o
57o
2004
2003
NEW / GREATLY INCREASED DATA SETS
Thermal maturity
Organic petrography and diagenesis
Characterization of effective petroleum systems
Apatite Fission Track Thermochronology
Paleomagnetism
Lithogeochemistry
Isotopic systems for provenance study
Rock magnetic susceptibility and density
Seismic (Lithoprobe)
Paleontology
Field notes digital
Photographs digital
56o
2005
130o
128o
NEW PUBLICATIONS (more details later):
14 reports and open files (maps and data),
including:
- a new basin compilation map
- a revised model of organic maturity
- a GSC bulletin
- CD’s of project data distributed at major
meetings (workshop, CSPG)
CAE Feb 21 ‘06
Northern Resources Development
Ministry of Energy and Mines
Resource Development
And Geoscience Branch
Bowser-Sustut Current Knowledge
Project Status Feb 2006
New Initiatives
1 Successful application to Geoscience BC for
funding of 3 project elements (over 2 years
starting June 2005)
1) Apatite Fission Track of southern Bowser/Sustut basins
2) Early basin history (more from J. Waldron later today)
3) Digital release of all field data (notes, photos, etc.)
2 10 papers submitted to the Bulletin of Canadian
Petroleum Geology (9 for a Bowser
thematic issue) – interim project results
AFT samples previously collected
AFT samples – Geoscience BC project
Early basin history and structural studies
Topics (most you will hear about later today):
1) Petroleum systems – petroleum systems
2) Thermal maturity, source rocks, migration history
3) Paleomagnetism – timing of fluid migrations
4) AFT of northwestern Bowser Basin
5) AFT of northern Bowser and Sustut basins
6) Seismic tomography northwest Bowser Basin
7) Potential Fields – depth to basement
8) Sedimentology of fan deltas - northern basin
9) Transverse structures, SE Skeena Fold Belt
10) Lithogeochemistry - chemostratigraphy
CAE Feb 21 ‘06
Northern Resources Development
Ministry of Energy and Mines
Resource Development
And Geoscience Branch
Bowser-Sustut Current Knowledge
Regional Geological Framework
 Bowser and Sustut basins: Jurassic and Cretaceous
clastic rocks that cover a large part of north-central
British Columbia; about 1.5 times the size of Switzerland.
 in the Intermontane Belt of the Canadian Cordillera, a
region of low metamorphic grade relative to the bounding
Omineca Belt (metamorphic) and Coast Belt (plutonic
and metamorphic)
 overlie Triassic and lower Jurassic volcanic arc rocks
of Stikinia
 basin rocks were deformed in Cretaceous time to
form Skeena Fold Belt; the fold belt terminates (locally)
on the NE in a frontal triangle zone within Sustut Basin
strata
 Bowser Basin is intruded on the west by early Tertiary
plutonic rocks of the Coast Belt
 basin rocks are overlain by minor late Tertiary and
Quaternary volcanic rocks
CAE Feb 21 ‘06
Northern Resources Development
Ministry of Energy and Mines
Resource Development
And Geoscience Branch
Bowser-Sustut Current Knowledge
Regional Stratigraphic Framework
Bowser Basin - more than 6000 m of sedimentary rock
deposited in environments ranging from distal submarine
fans and abyssal plain, to continental shelf, deltas, rivers,
lakes, and alluvial fans. Mapped as lithofacies assemblages
of the Bowser Lake Group. Includes Skeena Group (south).
Age: Middle Jurassic to mid Cretaceous
Lithofacies
assemblage map
Ritchie-Alger assemblage:
submarine fan
More to be revealed by P. Mustard later today!!
Sustut Basin
Sustut Group - more than 2000 m of nonmarine clastic
strata, divided into two formations:
Brothers Peak Formation – latest Cretaceous age
Tango Creek Formation – mid to latest Cretaceous age
CAE Feb 21 ‘06
Northern Resources Development
Ministry of Energy and Mines
Resource Development
And Geoscience Branch
Bowser-Sustut Current Knowledge
Regional Structural Framework
Basin rocks and underlying strata are
folded and thrust faulted. The structures
define the Skeena Fold Belt, a thin skinned
fold and thrust belt of Cretaceous age.
Northeast front of the Skeena Fold Belt
20 km
Triangle zone
NE
CAE Feb 21 ‘06
Wow factor folds, but….
Northern Resources Development
Ministry of Energy and Mines
Resource Development
And Geoscience Branch
Bowser-Sustut Current Knowledge
Regional Structural Framework
W Sustut Group – Brothers Peak Fm
Wide range of
scales and styles;
the most complex
folds are in coaly
strata and in thinly
layered siliceous
siltstone in upper
Hazelton Group.
Large scale folds
are near basement
culminations and
other competent
successions.
Folds are typically conical,
disharmonic, detachment,
faulted detachment.
Bowser Lk Gp
NE
Sustut Group – Tango Ck Fm
NE
Devils Claw Formation
NE Bowser Lk Gp
CAE Feb 21 ‘06
Bowser Lk Gp
Northern Resources Development
Ministry of Energy and Mines
Resource Development
And Geoscience Branch
Bowser-Sustut Current Knowledge
Highlights of 2005 Fieldwork
southern segment of basin compilation map
published June 2004 (sources: published
‘97 and ’70’s work)
Quick compilation of ’04-’05 field season
mapping in the southern basin
103P
93M
93L
103I
Skeena Group
Bowser Lake Group assemblages
Hazelton Gp and lower
Primarily nonmarine
clastic
Jenkins Creek
Cranberry River (new)
Primarily volcanic
Groundhog-Gunanoot
Ritchie-Alger
Undivided
Bowser/Skeena
Muskaboo Creek
Undivided Bowser Lake Gp
CAE Feb 21 ‘06
Northern Resources Development
Ministry of Energy and Mines
Resource Development
And Geoscience Branch
Bowser-Sustut Current Knowledge
Highlights of 2005 Fieldwork
“basin” rocks
Lower Bowser “basin”
contact vs. base of
Bowser Lake Group
103P
93M
103I
Bowser Lake Group
clastic rocks
Age of lower boundary
diachronous
Hazelton Group
clastic rocks
Hazelton Group
volcanic and
volcaniclastic rocks
93L
CAE Feb 21 ‘06
Northern Resources Development
Ministry of Energy and Mines
Resource Development
And Geoscience Branch
Bowser-Sustut Current Knowledge
Highlights of 2005 Fieldwork
Distinction of thick, generally massive (and
commonly cleaved) siltstone/very fine grained
sandstone unit
A new assemblage called Cranberry River
103P
93M
103I
Main locations, also in 104A
93L
CAE Feb 21 ‘06
Northern Resources Development
Ministry of Energy and Mines
Resource Development
And Geoscience Branch
Bowser-Sustut Current Knowledge
Highlights of 2005 Fieldwork
Extend distribution of Muskaboo
Creek to south and southwest
more on this from Peter Mustard
103P
93M
103I
Identification of transitions
into Skeena Gp
93L
CAE Feb 21 ‘06
Northern Resources Development
Ministry of Energy and Mines
Resource Development
And Geoscience Branch
Bowser-Sustut Current Knowledge
Highlights of 2005 Fieldwork
Skeena Group – large area of fining
up cycles with abundant plant
debris and thin coal horizons.
103P
93M
103I
93L
CAE Feb 21 ‘06
Northern Resources Development
Ministry of Energy and Mines
Resource Development
And Geoscience Branch
Bowser-Sustut Current Knowledge
Highlights of 2005 Fieldwork
Skeena Group – a variety of rocks
apparently above the lower fluvial
section includes Rocky Ridge
volcanics and related sedimentary
rocks, some as young as the
Tango Creek Fm (Sustut Group).
>200 m section overlying
Rocky Ridge volc’s is
tuffaceous clastic rocks;
highest (in footwall of
thrust fault) is ≤83 Ma
(~Campanian) based on
detrital zircon geochron.
103P
93M
103I
93L
CAE Feb 21 ‘06
Volcanics – E Albian to mid
Cenomanian; Ar/Ar 95.6 ± 1.6 (Bassett
and Kleinspehn 1996)
Northern Resources Development
Ministry of Energy and Mines
Resource Development
And Geoscience Branch
Bowser-Sustut Current Knowledge
Highlights of 2005 Fieldwork
Sustut Group
Tango Creek Formation
Also sampled for palynomorphs
and geochron. at Sustut unit
boundaries to the north (in 94D) to
compare with northern Sustut
Group
103P
93M
103I
93L
Takla valley – outcrop is sparse and
generally small
CAE Feb 21 ‘06
Overturned SW of Takla valley
Northern Resources Development
Ministry of Energy and Mines
Resource Development
And Geoscience Branch
Bowser-Sustut Current Knowledge
Highlights of 2005 Fieldwork
Eocene sedimentary rocks
… also poorly exposed; many small outcrops
along the southeast limits of the Bowser Basin
103P
93M
103I
93L
CAE Feb 21 ‘06
Northern Resources Development
Ministry of Energy and Mines
Resource Development
And Geoscience Branch
Bowser-Sustut Current Knowledge
2005 Fieldwork - Structure
Structural Styles – Skeena Fold
Skeena Gp
Belt structures in all units, in the
S
valleys and on the peaks
Bowser Lk Gp
Skeena Gp
Bowser Lk Gp
Skeena Group
Extensional Structures
The fundamental question is how important are
the numerous normal faults shown on existing
maps, relative to other structures, in the 3D
distribution of map units.
Bowser Lk Gp
More on structure of SE Skeena Fold Belt from
Margot McMechan later today!!
CAE Feb 21 ‘06
Hazelton Group
Northern Resources Development
Ministry of Energy and Mines
Resource Development
And Geoscience Branch
Bowser-Sustut Current Knowledge
Highlights of 2005 Fieldwork
New Ages For The Southern Basin (2004, 2005) From Fossils And Geochronology
L Alb
/Tur
(Cen)
L. Tith
from lower (Hazelton Gp) strata
(~Berr. or yngr)
Kim-Val
Cret prob
pre M Alb
E Cret KimVal
L Jr?
E Cret.
L Call.
to E Oxf
L Bath
San
or Cal
Camp
?
L Jur
L Jr? M Alb
/Tur
Cen
Oxf. or
L Jur/E Cret
Call.
ca. <149 Ma
Kim(~Tith or yngr)
Val ca. <83 Ma
(~Campan. 93M
or yngr)
L Jr?
E Oxf.
103I
L Alb
to Tur
MARINE MACROFOSSILS
(determinations by T. Poulton)
from Bowser Lake Group
ca. <143 Ma E Cret
Oxf
103P
L Alb
93L
age indeterminate or long
ranging (ie. Bowser Lk Gp - Jur.)
PALYNOLOGY (determinations
by A. Sweet)
very preliminary ages
2005 sample not reported on
age indeterminate or long
ranging
UPb GEOCHRONOLOGY
(by V. McNicoll)
collected
preliminary age
Most collections of Bowser Lake Group where age could be determined are Late Jurassic, or latestCAE Feb 21 ‘06
Jurassic to earliest Cretaceous. Most Skeena Group samples yielded Early Cret. Ages (preliminary), a
few mid Cretaceous. Next steps are to incorporate previous collections (after verifying locations).
Northern Resources Development
Bowser-Sustut Current Knowledge
Other research – Provenance and age
constraints from Isotopic Systems (V. McNicoll)
Ministry of Energy and Mines
Resource Development
And Geoscience Branch
APPROACH – collect sandstone from strata
whose age is well constrained paleontologically,
and from diverse geography, map units, and ages.
U-Pb SHRIMP analyses of detrital zircons provide
a maximum age.
Typical Bowser Lake Gp detrital
zircons on SHRIMP mount
Combined cumulative probability plots
have youngest peak at the depositional
age of the rock determined
paleontologically. To date >750 zircon
grains from 14 samples analyzed.
The consistency with which the
youngest peak is on the depositional age
of the rock provides cautious optimism
that we can use this method to
determine the age of sections where
fossils are lacking – target is unit
boundaries.
CAE Feb 21 ‘06
Northern Resources Development
Ministry of Energy and Mines
Resource Development
And Geoscience Branch
Bowser-Sustut Current Knowledge
Other Research - Thermal Maturity
(L. Stasiuk and others)
GSC/BCMEM
open file published 2005
samples collected 2004
samples collected 2005
More on this and petroleum migration history from V. Stasiuk later today
and K. Osadetz on petroleum systems.
CAE Feb 21 ‘06
Northern Resources Development
Bowser-Sustut Current Knowledge
Other research – Timing of Thermal Events
Ministry of Energy and Mines
Resource Development
And Geoscience Branch
Paleomagnetic Studies - R. Enkin
Area around Oweegee dome chosen
because of the range of stratigraphic
units available for sampling and
because thermal maturity low relative
to other parts of the basin.
A pervasive hydrothermal event after
most of the Skeena Fold Belt
deformation in the vicintiy of
Oweegee.
N
52
±1
6°
More from Randy Enkin later today!
W
50 Ma
0 Ma
100 Ma
North American
Expected Directions
from Enkin (2006)
E
Paleomag Site Means
(Post-Tilt Directions)
Bowser Lake Group
Hazelton Group
Permian / Triassic
Mean of 30 Sites
on and around
Oweegee Dome
CAE Feb 21 ‘06
Northern Resources Development
Bowser-Sustut Current Knowledge
Other research – Timing of Thermal Events
Ministry of Energy and Mines
Resource Development
And Geoscience Branch
Apatite Fission Track Thermochronology
P. O’Sullivan, K. Osadetz, C. Evenchick, F. Ferri
Northern basin: data for 71 samples
published (GSC OF4840 /BCMEM
OF2004-3) and 2 interpretion papers
submitted to BCPG.
More from Paul O’Sullivan later today!!
Southern Basin:
Geoscience BC funded project
For comparison with northern thermal
history and to aid in interpretation of
“normal” faults.
Data to be published in Open File format
in the next 2 months with interpretation
paper(s) to follow.
AFT samples previously collected
AFT samples – Geoscience BC project
CAE Feb 21 ‘06
Northern Resources Development
Resource Development
And Geoscience Branch
Seismic Tomographic Cross sections
Lithogeochemistry and Heavy Metals
D. Ritcey, K. Ratcliffe, C. Evenchick
Whole-rock geochemistry on 158 outcrop samples
(a variety of lithologies and stratigraphic units from
the Bowser and Sustut basins).
Heavy mineral analysis on 30 sandstone samples.
Goals - identification of provenance, and
geocharacterization of units leading to methods for
geochemical correlation.
More from David Ritcey later today
VP 6500
CDP 11600
6600
6700
12000
6800
6900
7000
12450
7100
0
Depth, km
D. Snyder
From inversion of first-break travel time picks of
the Lithoprobe SNORCLE deep reflection profile
estimate bulk P-wave speed within the upper 2
km of crust beneath the Bowser Basin. Two
areas investigated in detail: near Oweegee
Dome, and northwest of the basin at the
extension of the triangle zone.
More from Dave Snyder later today
0 .5
1 .0
1 .5
25 KM
m /s
Seismic tomographic model
0.25
Fe/Ni
Ministry of Energy and Mines
Bowser-Sustut Current Knowledge
Other research - later today
0.20
Sustut Group
Sustut
Group
Bowser Lake Group
lithofacies assemblages
Lithofacies assemblages
of the
Bowser Lake Group
0.15
0.10
0.05
0.00
0
1
2
3
4
5
6
Cr/ZrCAE Feb 21 ‘06
An example of plot characterizing the
Bowser Lake and Sustut groups.
Northern Resources Development
Ministry of Energy and Mines
Resource Development
And Geoscience Branch
Bowser-Sustut Current Knowledge
Other research - Potential Fields
(Carmel Lowe)
Data release / interpretation as GSC open file:
Lowe, C., Evenchick, C.A., Bellamy, C.S., and Smith, G. 2004. Density and Magnetic Susceptibility of rocks
from the Bowser and Sustut basins, and underlying Stikinia, northcentral British Columbia. Geological Survey of
Canada, Open File 4629, 23p
Full interpretation in journal article:
Lowe, C., Baker, J., and Evenchick, C.A. 2006. Constraints on the nature and thickness of sedimentary fill and
other intra-basin geologic features, Bowser Basin, north-central British Columbia. March(?) issue Bull. of Can.
Petrol. Geol.
Left: Magnetic
anomaly map with
basin outlines
and interpretation
Right: Depth to
basement from
spectral analysis
of magnetic data
CAE Feb 21 ‘06
CAE Feb 22 ‘05
Northern Resources Development
Ministry of Energy and Mines
Resource Development
And Geoscience Branch
Bowser-Sustut Current Knowledge
Outreach - Bob Turner and Godfrey Nowlan
Geoscape Community Guidebooks
Guidebooks for teachers
- to bring geoscience to
communities through
tours of local features.
- involves local teachers
and other interested
community groups.
- 10-15 pages of text and
graphics.
Geological Landscapes of Northern BC
Highway map
Simplified geological map with panels
(graphics and text) of landscape /
geoscience themes.
Under development with BC Geol. Survey
CAE Feb 21 ‘06
Northern Resources Development
Bowser-Sustut Current Knowledge
Ministry of Energy and Mines
Resource Development
And Geoscience Branch
New Publications (2005) – data, maps
CAE Feb 21 ‘06
FREE DOWNLOADS
maps at: http://rgsc.nrcan.gc.ca/mirage/index_e.php
reports, open files, bulletins etc. at: http://geopub.nrcan.gc.ca/publist_e.php
Northern Resources Development
Bowser-Sustut Current Knowledge
Ministry of Energy and Mines
Resource Development
And Geoscience Branch
New Publications (2005, early 2006)
Evenchick, CA. 2005. Geology, Laslui Lakes, British Columbia; Geological Survey of Canada, Open File 4947.
Evenchick, C.A. 2005. Geology, Stalk Lakes, British Columbia; Geological Survey of Canada, Open File 4948.
Evenchick, C.A. and Ritcey, D. 2005. Geology, Sturdee River, British Columbia; Geological Survey of Canada, Open File 4946.
Evenchick, C.A. and Thorkelson, D.J. 2005. Geology of the Spatsizi River map area, north-central British Columbia; Geological
Survey of Canada, Bulletin 577. 276 pages. 2 sheets of strat. column, 3 sheets of structural cross sections, 12 1:50K maps, 3 1:250
K maps.
Evenchick, C.A., F. Ferri, P.S. Mustard, M.E. McMechan, D. Ritcey, V.J. McNicoll, K.G. Osadetz, P.B. O'Sullivan, L.D. Stasiuk, N.S.F.
Wilson, T.P. Poulton, C. Lowe, R.J. Enkin, J. Waldron, D.B. Snyder, R.J.W. Turner, G. Nowlan, and M. Boddy. 2005. Highlights of
recent research in the Bowser and Sustut basins project, British Columbia. in Current Research, Geological Survey of Canada,
no. 2005-A1, 11 pages.
Evenchick, C.A., Gabrielse, H., and Snyder, D. 2005. Crustal structure and lithology of the northern Canadian Cordillera:
Alternative interpretations of SNORCLE seismic reflection Lines 2a and 2b. Canadian Journal of Earth Sciences 42: 1149-1161.
Evenchick, C.A., O'Sullivan, P.B., Waldron, J.W.F. 2006. Targeted Energy Resource Studies in the Bowser and Sustut Interior
Basins of British Columbia. in Geological Fieldwork 2005, BC Ministry of Energy, Mines and Petroleum Resources, Paper 2006-1
and Geoscience BC, Report 2006-1, pages 281-285.
Ferri, F., Mustard, P.S., McMechan, M., Ritcey, D., Smith, G.T., Evenchick, C.A. and Boddy, M. 2005. Skeena and Bowser Lake
Groups, West Half Hazelton Map Area (93M). in Summary of Activities 2005, BC Ministry of Energy and Mines, p. 113-131.
Lowe, C., Baker, J., Evenchick, C.A. 2006. Constraints on the nature and thickness of sedimentary fill and underlying
basement rocks, in Bowser and Sustut Basins, north-central British Columbia. Bulletin of Canadian Petroleum Geology. (March
2006 issue).
O'Sullivan, P.B., Donelick, R. A., Osadetz, K.G., Evenchick, C.A., Ferri, F., Wilson, N.S.F. and Hayes, M. 2005. Apatite FissionTrack Data from Seventy-one Bowser and Sustut Basin Rock Samples. Geological Survey of Canada, Open File Report 4840
and B.C. Ministry of Energy and Mines, Petroleum Geology Open File 2004-3, cd-rom, 500 p.
Ritcey, D.H., Evenchick, C.A., and Ratcliffe. K. 2006. Geochemical and heavy mineral analyses of the Bowser Lake and Sustut
groups, north-central British Columbia, Canada; Geological Survey of Canada, Open File 5072, 1 CD-ROM..
Smith, G.T. and Mustard, P.S. 2005. The Southern Contact of the Bowser Lake and Skeena groups: Unconformity or
Transition? in Summary of Activities 2005, BC Ministry of Energy and Mines, pages 152-156.
Stasiuk, L.D., Evenchick, C.A., Osadetz, K.G., Ferri, F., Ritcey, D., Mustard, P.S., McMechan, M. 2005. Regional thermal
maturation and petroleum stage assessment using vitrinite reflectance, Bowser and Sustut basins, north-central British
Columbia. Geological Survey of Canada Open File 4945; BC Ministry of Energy, Mines and Resources, Petroleum Geology Open
File 2005-2: 13 p. (includes map compilation at 1:500k).
CAE Feb 21 ‘06
Waldron, J.W.F., Gagnon, J.-F., Loogman, W., and Evenchick, C.A. 2006. Initiation and deformation of the Jurassic-Cretaceous
Bowser Basin: implications for hydrocarbon exploration. in Geological Fieldwork 2005, BC Ministry of Energy, Mines and
Petroleum Resources, Paper 2006-1 and Geoscience BC, Report 2006-1, pages 349-360.
Northern Resources Development
Bowser-Sustut Current Knowledge
Ministry of Energy and Mines
Resource Development
And Geoscience Branch
Publications in review or in press
Edwards, B.R., Evenchick, C.A., McNicoll, V.J., Wetherell, K., and Nogier, M. 2006. Overview of the volcanology of
the Bell-Irving volcanic district, northwestern Bowser Basin, British Columbia: new examples of alpine
glaciovolcanism from the northern Cordilleran volcanic province. In press GSC Current Research.
Evenchick, C.A., McMechan, M.E., McNicoll, V.J. and Carr, S. A synthesis of the Jurassic-Cretaceous tectonic
evolution of the central and southeastern Canadian Cordillera: exploring links across the orogen. For GSA special
publication “The Nature of Orogenic Systems” edited by J. Sears, T. Harms, C. Evenchick. In review.
M.E. Reichenbach, A.A. Gordon, C.A. Evenchick, and D.H. Ritcey. Petrographic data and descriptions of the Bowser
Lake and Sustut groups, north-central British Columbia, Canada. In review, for publication as a GSC Open File.
the following papers have been submitted (or will be in the next week) to the Bulletin of Canadian Petroleum Geology for
consideration for inclusion in a thematic issue on the Bowser and Sustut basins.
Enkin, R.J., Baker, J., Evenchick, C.A. Paleomagnetic Investigation of Hydrothermal Events in the Bowser Basin.
Evenchick, C.A., O'Sullivan, P.B., Osadetz, K.G., and Ferri, F. Apatite Fission Track Thermochronology of the
northern Bowser and Sustut basins, British Columbia: Constraints on Cenozoic Thermal History.
McMechan, M.E. Transverse structures and tectonic inversion, Mosque Mountain area, southeastern Skeena
Fold Belt, British Columbia.
Osadetz, K.G., Jiang, C., Evenchick, C.A. Ferri, F., Stasiuk, L.D., Wilson, N.S.F., and Hayes, M. Compositions and
significance of petroleum systems in Bowser and Sustut basins (Intermontane Belt) British Columbia: crude oil
compositional traits.
O'Sullivan, P.B., Ferri, F., Evenchick, C.A., Donelick, R.A. and Osadetz, K.G. Apatite Fission Track Results From The
Northwestern Bowser Basin: Constraints On Latest Cretaceous Through Cenozoic Thermal History And Hydrocarbon
Prospectivity
Ratcliffe, K.T., Morton, A.C., Ritcey, D.H., and Evenchick, C.A. Whole rock geochemistry and heavy mineral
analysis as exploration tools in the Bowser and Sustut basins, British Columbia, Canada.
Ricketts, B.D. and Evenchick, C.A. Gilbert Deltas and Fan Deltas in Contractional Settings: Examples From the
Foredeep Margin of Bowser Basin, British Columbia, Canada.
Snyder, D.B. and Roberts, B.J. Seismic tomographic cross sections of the Bowser Basin in Northwest British
CAE Feb 21 ‘06
Columbia, Canada.
Stasiuk, L.D. Wilson, N.S.F. Thermal maturation, potential source rock evaluation and preliminary constraints on
petroleum migration history, Bowser Basin, British Columbia, Canada.
Northern Resources Development
Ministry of Energy and Mines
Resource Development
And Geoscience Branch
Bowser-Sustut Current Knowledge
Project Future
FOCUS FOR 2006
minor wrap-up fieldwork
research and publication
Continue map compilation at
50K, 250K, and 500K scales
Continue analysis and
integration of datasets
Interim reports, presentations
Final synthesis - digital basin
atlas to encompass all data
and interpretations (the plan,
but subject to major revision
pending budget allocation)
Field trip??? Contact me in
the next month if you are
interested
[email protected]
DIGITAL BASIN ATLAS
Interpretations
Data
Maps (50, 100, 500K scales)
GIS linked to data
Papers (linked to maps, data)
Introduction
Tectonic framework
Stratigraphy
Structure
Potential fields
Seismic tomography
Biostratigraphy
Geochronology
Lithogeochemistry
Thermal maturity
Apatite Fission Track
Paleomagnetism
Petroleum Systems
Synthesis of depositional,
structural, and thermal
history
Resource Assessment
Field notes, photos
Fossils
Reflectance
TOC
Petrography
Organic chem.
Litho geochemistry
Geochronology
Apatite Fission Trk
Paleomagnetic
Magnetic susceptibility
Rock density
CAE Feb 21 ‘06
Northern Resources Development
Ministry of Energy and Mines
Resource Development
And Geoscience Branch
Bowser-Sustut Current Knowledge
Summary
From field season - significantly refined distribution of map units in the southern basin;
refinement of unit characteristics; completion of collection of sample suites for
thematic studies.
From ongoing work – major progress on a number of studies – thermal maturity,
organic petrology, petroleum systems, thermal history (AFTT, paleomagnetism),
provenance, paleontology, lithogeochemistry, seismic tomography, structural analysis.
Several new publications of data and interpretations available.
SOURCES OF RECENT INFORMATION
Latest project “Geosampler” CD with todays
powerpoint presentations will be sent if you leave us
a buisness card or send an email
See our website!! www.bowserbasin.com
But…please remember, material in ppt presentations, the
website, and CD is not peer reviewed; the material is meant
to aid in your understanding of the region, but not to be
cited in formal publications unless it is already published
(formally).
FREE downloads of GSC products:
Maps - http://rgsc.nrcan.gc.ca/mirage/index_e.php
Reports (bulletins, data open files, papers) http://geopub.nrcan.gc.ca/publist_e.php
CAE Feb 21 ‘06