SEPM Clastic Diagenesis Research Group

Annual Meeting Report

Date: May 20, 2019

Venue: Salon A, San Antonio Marriott Riverwalk, San Antonio, TX

Report by: T. Kosanke

2019 Organizer: T. Kosanke


This year’s SEPM Clastic Diagenesis Research Group met during the AAPG Annual Convention and Exhibition in San Antonio, Texas. The meeting took place in Salon A of the San Antonio Marriott Riverwalk, from 7:00 - 10:00 PM. The program included the following:

I.     Brief introduction from Organizer Tobi Kosanke
II.    Research Presentations and Discussions
III.   Challenge Question Discussion

Twenty people attended the session, with several students attending for the first time and several more students returning for their second and third years. Students have been encouraged to attend this event and it is hoped that this will continue for future years. The remainder of the audience was composed of industry geologists and faculty/research scientists from academia.

Goals of the meeting:

The goal of the meeting was to present an opportunity for the clastic diagenesis community, from academia and industry, to discuss challenges and develop scientific ways forward in issues in clastic diagenesis. The meeting also provided opportunities for students, academics and industry representatives to network in an informal manner.

Talks and Presentations:

I.     Dimitrios Charlaft: “Assessing HPHT sandstone reservoir quality: Quartz cement vs. clay coatings”
II.    Richard Worden: "A surprising case of corroded and dissolved quartz grains in calcite-cemented marine sandstones"  
III.   Claire McGhee: “How is detrital clay content distributed across shallow-deep marine settings? Detailed insights from two active modern analogues”
IV.   James Greene: “Quantitative calibration of hyperspectral core imaging data: A new method for producing continuous, high-resolution mineralogical characterization of cores from both conventional and unconventional reservoirs”
V.    Challenge Question: Sub-vertical, reverse-fault-parallel stylolites are not uncommon in limestones, proving that pressure (or more accurately, effective stress) plays a major role in the generation of stylolites in limestones. Has anyone in the sandstone community ever observed in outcrop, core or in thin section (or heard evidence of or rumor about) sub-vertical, reverse-fault-parallel stylolites in clastic rocks?

The presented research served as an excellent basis for both spirited and in-depth discussion.

Questions? Please contact one of the organizers (listed above) or Hayley Cooney at SEPM headquarters: