My Geological & Paleontological Website
By: Jacques LeBlanc, Geologist


Born in Quebec, Canada, Jacques LeBlanc studied Mining Geology at the University of Quebec in Chicoutimi and graduated in 1986.  I started collecting fossils as an amateur when I moved to Calgary, Western Canada, to start my professional life as a petroleum geologist.  With my background in geology and my previous experience at rock-hunting in the Eastern Provinces of Canada, the rich paleontological deposits of my new home drove me towards fossil collecting.
In 1992 I was hired by a private firm in order to conduct a Geological Assessment of ammonite deposits on some land in the Province of Alberta.  My ammonite assessing contract lead to another one which involved exploring for a period of 2 years all over Colombia and South America for mineral and fossil specimens in order to provide museum and private collectors worldwide with the best display specimens.

Later, my Oil & Gas and Mining career took me to Africa (Niger, Chad & Libya) where I continued exploring on my own for local fossil attractions.  My latest assignment, which started in 2007, is as a Senior Geologist working for Qatar Petroleum on the Giant Dukhan Oilfield.  Seeing the lack of readily available publications on the surface geology of Qatar, I endeavored to correct this void by writing some guides on this topic (see list below) in addition to contributing to an article on the Dukhan sabkha for the 2009 International Petroleum Technology Conference (IPTC). Later,  with a colleague I wrote a document describing a newly discovered member of the Eocene Dammam formation, as well as educating the general public by offering talks on the geology and paleontology of the country. In 2015 I dedicated part of my free time in finding two archeological sites  (Al-Shagra and Al-Shagra II), the reports of which were handed-over to QMA (and available herein) 

From 2011 to 2015 I dedicated my free time in writing "A Historical Account of the Stratigraphy of Qatar (1816 to 2015)". This is an extremely valuable source of historical information for who ever wants to understand the background history behind the stratigraphical units in Qatar as we know them today. Previously, all this information was scattered throughout several public domain papers and records, some time very difficult to access.  In addition to gathering all this publicly available information into one complete file, the document contains some unique items such as the transcripts of interviews with Mr. Abdallah Salatt (former Qatar Petroleum Board Member and first Qatari geologist) and Dr. Claude Cavelier (who conducted the most extensive surface geological survey of the country in 1969-70 and for which the first color geological map of Qatar was generated).  Several email communications also took place with Mr. Anthony J. Standring (paleontologist who worked on the first Qatar deep well, DK-0065, in 1959), the son of Mr. Walter Sugden (geologist in Qatar in the 1950's) and the son and daughter of Dr. Alan H. Smout who published in 1954 the study titled "Lower Tertiary Foraminifera of the Qatar Peninsula".

The topic of my February 2017 publication dealt with silica in the Lower Eocene Rus Formation. In this publication I first reviewed the most important known processes that were put forward for the formation and occurrences of silica in carbonate sediments and related these theories to the Rus Formation of Qatar. Secondly, I summarized the geology of the Rus Formation; and thirdly, I highlighted the main points of my investigation within the selected six areas of study (Dukhan, Simsima, Thakira, Shahaniya, Umm Bab and Jaleha)  and discussed in general terms few others. While the Simsima area stood out for the quality and quantity of quartz geodes, the Dukhan area was the most fascinating to study. This area was known to archeologists for many years as containing peculiar and unique chert nodules, however, no one had conducted up to now a study to ascertain their origin. From my finding, this silica is related to the tectonic setting of the anticline of the Dukhan oil field and its origin is linked to the silicified remains of the main tubular conduits of paleo-freshwater springs charged with a high content of sulphide (and possibly oil).  The environment that existed at the time these springs were active (during the Miocene - not Eocene) must have looked similar to the water-gas-oil seepage currently taking place in Azerbaijan.

My latest publication "A revised guide to the Cenozoic Surface Formations of Qatar, Middle East (excluding the islands)" published on July 1st 2017, is an update to Cavelier's 1975 report "The Tertiary in outcrops" and provides the latest stratigraphic information on the four Paleogene and Neogene surface formations of the country. My next publication (listed in red below) will be ready in early 2019.

If you wish to freely download any of my publications (as listed below), please follow this link:

Most of them can also be downloaded from:
<a href="">Jacques Leblanc on ResearchGate</a> 


  • (2015) The Al-Shagra Archeological Site re-discovered (Qatar); by Jacques LeBlanc
  • (2015) The new “Al-Shagra II” Site (Qatar); by Jacques LeBlanc

  • (2009) A fossil hunting guide to the Miocene of Qatar, Middle-East: A Geological & Macro-Paleontological investigation of the Dam Formation; by Jacques LeBlanc
  • (2009) IPTC 13629 - The Dukhan Sabkha: A Modern Analog for the Arab C Carbonate Reservoir, Dukhan Field, Qatar; by David D. Puls, Jeremy Jameson, Mike Kozar, Hussain Al-Ansi and Jacques LeBlanc
  • (2014) Surface Geology and Paleontology of Qatar; by Jacques LeBlanc
  • (2014) Qatar Nature: A Walk Through Time (by Frances Gillespie). Newspaper article describing a QNHG field trip to the Miocene of Qatar with Jacques LeBlanc, Jeremy Jameson and Christian Strohmenger as guides. As seen in
  • (2017) Origin and types of silica in the Lower Eocene Carbonates of the Rus Formation, Qatar, Middle-East. 111 pages. 12Mb. By Jacques LeBlanc

  • (2014) Meteorite fragment that landed in Qatar makes a big impression. Newspaper article by Joey Aguilar discussing the second meteorite found in Qatar by Marcin Kożusznik

  • (1994) Que es una amonita (What is an ammonite?); by Jacques LeBlanc
  • (1995) The three "C"'s of fossil hunting: Collecting, Cataloguing and Caring for your fossils; by Jacques LeBlanc
  • (1999) Geological time scale; by the University of Calgary, Alberta, Canada
  • (2000) Macrofossil localities of Libya, Africa; by Jacques LeBlanc
  • (2000) Macrofossils: their localities in Alberta, Canada; by Jacques LeBlanc
  • (2007) Qatar Natural History Group (QNHG) fossil shark teeth hunting trip to Southern Qatar (November 30th 2007); with Jacques LeBlanc as guide
  • (2008) A fossil hunting guide to the Tertiary Formations of Qatar, Middle-East; by Jacques LeBlanc
  • (2009) A fossil hunting guide to the Miocene of Qatar, Middle-East: A Geological & Macro-Paleontological investigation of the Dam Formation; by Jacques LeBlanc
  • (2017) Notes on Nautiloids from the Dukhan Limestone in Khatiyah North, near Dukhan, Qatar (with permission from the author: Aubrey Whymark)
  • (early 2019, expected date) Identifying the Middle Eocene Nautiloid Genera of Qatar, Middle East

  • (2012) The Bir Zekreet Member: A new lithostratigraphical unit of the Dammam Formation in Qatar; by Cornelius "Cees" Kok and Jacques LeBlanc
  • (2015) A Historical Account of the Stratigraphy of Qatar, Middle-East (1816 to 2015); by Jacques LeBlanc
  • (2017) A revised guide to the Cenozoic Surface Formations of Qatar, Middle East (excluding the islands); by Jacques LeBlanc

Wishing you all the best
Jacques LeBlanc

Last updated: June 9th 2018