JANUARY 2025 LUNCHEON MEETING
BO HENK
presents:
Geology of the Austin Chalk in Dallas County
from Outcrop and Core Studies
11:30 AM Wednesday, January 15, 2024
at Willow Brook Country Club
3205 W Erwin St.
Tyler, TX 75702
Cost: $25 if you RSVP
$30 at the door if you do NOT reserve
Abstract
In this one-hour presentation, we will examine the stratigraphy, structural geology, and detailed litho- and ichnofacies of the Austin Chalk Group, with a specific focus on the Atco Formation in the lower Austin Chalk. Outcrops of the Atco occur in the creeks and quarries in the Dallas area with excellent exposures of the basal contact with the underlying Eagle Ford, normal faults that are part of the Balcones fault system, and thick bedded chalks and thin marl interbeds that are heavily bioturbated.
The USGS GC-2 core, taken in South Dallas, has a complete section of the Atco. We have made significant strides in understanding the lithostratigraphy and the ichnology of the chalks and marls with the use of XRF data and core image enhancement. Additionally, we will explore the reservoir potential of the Atco Member and its implications for the East Texas Basin.
Biography
Bo has been a Petroleum Explorationist and Research geologist for over 40 years and has worked internationally and in the lower 48 since graduating with an MSc from TCU in 1981. He has been party to many major discoveries overseas and also in the black shales and tight gas sands in the lower 48. He also has extensive reservoir geology experience and has published and presented on many reservoirs.
Bo is also a field geologist with excursions to Alaska, Greenland, Scotland, Canada, Australia , Ecuador, Asia, Africa and the United States
His most recent field work as an adjunct prof at TCU since 2018 has been on the Woodbine, Eagle Ford and Austin Chalk in North Central Texas and the Eagle Ford and Austin Chalk from Del Rio to Big Bend.