New T>Suite Release
We have just released new versions of Touchstone, T>Map, and T>Analyze. New features are summarized below. Touchstone v. 8.4 Simulation of chemical compaction: This new option in the Compaction model simulates the change in intergranular volume that occurs in response to the dissolution of mass at grain contacts. Our tests on datasets indicate improved compaction…
Read More2026 RQC and T>Map Consortium Meeting
We will be holding our next consortium meeting on February 11-12, 2026 in beautiful Durango, Colorado, USA. Note that participation is limited to organizations that are in good standing for 2025 or 2026 RQC membership.
Read MoreNPF Reservoir Characterization Conference
Linda Bonnell and I will be attending the NPF Biennial Reservoir Characterization Conference in Stavanger, Norway on December 3-4, 2025. The conference lineup looks great and I hope that we will see you there. Below is the abstract summary for the talk I’ll be giving, which is co-authored by Linda and Jim Guilkey. ________________________________ Making…
Read More2025 RQC and T>Map Consortium Meeting
We had a terrific group, as usual, join us in Durango, Colorado for the Geocosm consortia meetings on January 28-29. The meeting featured lectures and workshops associated with new features coming in Touchstone v. 8.4 and T>Map 3.5, presentations on ongoing research topics, and two outstanding participant presentations on topics of great interest to the…
Read MoreNew Textbook!
Sandstone Petrography, Petrology, and Modeling is now available from SEPM at this link: https://sedimentary-geology-store.com/catalog/book/sandstone-petrography-petrology-and-modeling This book, which owes its existence to Tom Taylor, who had minor assistance from Linda Bonnell and Rob Lander, From the publisher’s description: This volume provides both an updated foundation in modern sandstone petrology and a practical guide for the petrographic…
Read MoreTouchstone 8.2 Released
We are delighted to announce the release of version 8.2 of Touchstone, Geocosm’s flagship system for prediction of the diagenesis and properties of clastic rocks. Important new capabilities and enhancements in Touchstone 8.2 include: Sorting impact on compaction: We have introduced a new compaction model option that considers the influence of depositional IGV variations on…
Read More2020 RQC Meeting
Thanks to all who attended our 2020 RQC meeting discussion session on December 17th. This year we used an online format for the first time for our meeting with pre-recorded videos of our presentations and online workshops that were posted about a week before a live online discussion session. We had nearly 40 people take…
Read MoreTouchstone Fundamentals Online!
After months of work on both the content and our website we are delighted to announce that the Touchstone Fundamentals Course is now available online for active RQC members and recipients of academic Touchstone licenses. The course is intended for individuals who are new to Touchstone but experienced Touchstone modelers might find some things of…
Read More3rd International School on Diagenesis
The Applied Sedimentology Group at the GeoZentrum NordBayern (FAU Erlangen-Nuremberg) and Geocosm LLC. announce the 3rd School on the Diagenesis of Silicilastic Sediments on September 7-11, 2020. The school will be held at the Geozentrum Nordbayern in Erlangen, Germany and will focus on the controls on sandstone diagenesis and their implications for data interpretation and modeling.…
Read MoreEstimation of Geothermal Reservoir Quality by Diagenesis Modelling of Gassum Formation Sandstones
Geocosm’s Touchstone system is proving to be useful for the exploration of geothermal energy resources for RQC consortium member GEUS (Geological Survey of Denmark and Greenland) as discussed in the presentation below at the 34th Nordic Geological Winter Meeting in Oslo, Norway, January, 2020. ABSTRACT Olivarius, M.1,*, Tremosa, J.2 , Mathiesen, A.1 , Weibel, R.1…
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