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Comptes Rendus
Géoscience
Sciences de la Planète
Joseph Canérot, Carine Lézin and Thomas Saucède
Integrated stratigraphy of the Jurassic and the Cretaceous: a tribute to
Jacques Rey (1940–2018)
Volume 354, Special Issue S3 (2022), p. 1-4
Published online: 13 January 2023
Issue date: 13 January 2023
https://doi.org/10.5802/crgeos.197
Part of Special Issue: Integrated stratigraphy of the Jurassic and the Cretaceous: a
tribute to Jacques Rey
Guest editors: Carine Lézin (Laboratoire Géosciences Environnement, Université
Paul Sabatier, 31000 Toulouse, France) and Thomas Saucède (Biogéosciences,
UMR 6282 CNRS, Université Bourgogne Franche-Comté, 21000 Dijon, France)
This article is licensed under the
Creative Commons Attribution 4.0 International License.
http://creativecommons.org/licenses/by/4.0/
Les Comptes Rendus. Géoscience — Sciences de la Planète sont membres du
Centre Mersenne pour l’édition scientifique ouverte
www.centre-mersenne.org
e-ISSN : 1778-7025
Comptes Rendus
Géoscience — Sciences de la Planète
2022, Vol. 354, Special Issue S3, p. 1-4
https://doi.org/10.5802/crgeos.197
Integrated stratigraphy of the Jurassic and the Cretaceous: a tribute to Jacques Rey /
Stratigraphie intégrée du Jurassique et du Crétacé : un hommage à Jacques Rey
Integrated stratigraphy of the Jurassic and the
Cretaceous: a tribute to Jacques Rey (1940–2018)
Stratigraphie intégrée du Jurassique et du Crétacé : un hommage
à Jacques Rey (1940–2018)
Joseph Canérota, Carine Lézin ∗, b and Thomas Saucède c
a 3, Chemin Cordeau, 31200 Toulouse, France
b Géosciences Environnement Toulouse (GET), UMR5563 Université de
Toulouse/CNRS/IRD/Université Paul Sabatier, Observatoire Midi-Pyrénées,
Toulouse, France
c Biogéosciences, UMR6282, CNRS, Université Bourgogne Franche-Comté,
6 boulevard Gabriel, 21000 Dijon, France
E-mails: jcanerot@live.fr (J. Canérot), carine.lezin@get.omp.eu (C. Lézin),
thomas.saucede@u-bourgogne.fr (T. Saucède)
Published online: 13 January 2023, Issue date: 13 January 2023
The Groupe Français du Crétacé and Groupe
Français d’étude du Jurassique are pleased to join
and offer this thematic issue as a tribute to our
colleague and friend, Professor Jacques Rey, for his
remarkable career as a specialist of stratigraphy.
Jacques Rey was a pioneer in Sequence Stratigraphy.
Jacques Rey passed away at home, in Toulouse, on
March 5th, 2018. He had carried out his academic ca-
reer at Paul Sabatier University of Toulouse. He be-
gan as a teacher in 1962 until he retired in 2002. Dur-
ing these forty years, he successively passed all aca-
demic degrees: laboratory assistant (1964), assistant
lecturer (1967), lecturer (1975) and professor (1979),
∗Corresponding author.
jumping up to the exceptional level (1993). Since
2002, he was professor emeritus.
1. Academic activities: teaching, management,
expert assessment
Jacques Rey taught geology at all academic levels, un-
dergraduate and graduate, but also for public admin-
istrations, secondary schools, or industrial managers.
He also gave over 30 lectures on the evolution of life
on Earth, and in the palaeontology, stratigraphy and
geology of the Pyrenees in different towns and uni-
versities of southern France, Spain, Portugal and Mo-
rocco. In 1983, he published a book on stratigraphy
(Technip). Finally, during 10 years long he taught se-
quence stratigraphy at the National High School for
Oil and Motors in Paris.
ISSN (electronic) : 1778-7025 https://comptes-rendus.academie-sciences.fr/geoscience/
2 Joseph Canérot et al.
He directed nearly 30 PhD theses and took part
in many doctoral boards in France, Portugal, Spain
and Morocco. He also organized 14 scientific meet-
ings and participated to 53 congresses, including the
International Geological Congresses of Paris (1980),
Moscow (1984) and Beijing (1996).
Jacques Rey has been involved in many adminis-
trative positions, at different levels:
• International: member of the International
Subcommission on Stratigraphic Classifica-
tion (IUGS, 1990–1998); member of the Valu-
ation Committee of Earth and Space research
Units of Portugal (1990–1998);
• National: President of Commission 2 within
the 36th section of the National Committee
of the Universities (1992–1995); President of
the National French Committee of Stratig-
raphy (1990–1998) which published a book
titled “Stratigraphie, terminologie française”
[Rey, 1997]; Director of the Research Unit
1405 of the National Centre for Scientific Re-
search (1990–1994); President of the French
Group of the Cretaceous (1978–1982);
• Local: member of the Board of Directors
of Paul Sabatier University (1986–1990);
Provisional Administrator of the Research
Formation, Unit “Life and Earth sciences”
(1984–1987); President of the Commission
for Teaching (1986–1990).
Finally, Jacques Rey has been involved as an ex-
pert in different fields such as the hydrogeology of
the French departments of Lot, Tarn and Tarn-et-
Garonne, the Administrative Tribunal of Toulouse, or
the Scientific Council of the Regional Natural Parc of
Quercy.
2. Geological research: from biostratigraphy to
sequence stratigraphy
After a Master thesis dedicated to the geological
study of the Northern part of the Arize Massif in the
Central Pyrenees (1963), Jacques Rey moved to Portu-
gal where he worked up to the last years of his life. His
State Doctorate concerned the Lower Cretaceous of
the Lusitanian Basin [Rey, 1972], then he carried out
cooperative studies in a widened area involving dif-
ferent Atlantic-verging basins from France (Aquitaine
Basin), Portugal (Lusitanian and Algarve basins) and
Morocco (Essaouira Basin). All along these over 40
years of intense activity, he developed three main
stratigraphic approaches regarding the Jurassic and
Cretaceous infillings of the considered basins.
2.1. Biostratigraphy
In his doctorate thesis, Jacques carried out a de-
tailed stratigraphic study of the Lower Cretaceous
of the Estremadura Basin, defining different units
and providing new data on their age and correla-
tion, both for marine and terrestrial paleoenviron-
ments. Age dating was based on micro-(foraminifera,
algae) and macrofauna, especially echinoderms, one
of his main palaeontologic specialities. This biostrati-
graphic approach led to the definition of different,
newly correlated units, using sequence stratigraphy
concepts and giving way to new palaeoenvironmen-
tal and palaeogeographic reconstructions.
A synthesis of his main results was published in
2002 and 2008 [Dinis et al., 2002, 2008]. In the same
way, more studies were carried out in different At-
lantic bordering basins such as the Algarve, Aquitaine
and Essaouira ones.
2.2. Sequence stratigraphy
Since 1984, Jacques Rey took interest in the concepts
and methods of sequence stratigraphy, the source
documents being published by Vail et al. (American
Association of Petroleum Geologists, [1977]). Follow-
ing this new interpretation, “cycles of relative sea
level changes on a global scale are evident through-
out Phanerozoic time. The evidence is based on
the facts that many regional cycles (third order se-
quences) developed on different continental margins
are simultaneous and that the relative magnitudes of
the changes are generally similar”.
In the study area (Aquitaine, Portugal and Mo-
rocco), Jacques and his colleagues described all third
order sequences (genetic sequences) developed in
Jurassic and Early Cretaceous times. Detailed bios-
tratigraphic, sedimentological and tectonic data
were gathered within third order sequences made
up of system tracts and separated by unconformi-
ties, providing good correlations at the scale of the
different studied basins. The respective control of
the relative sea-level change, subsidence and sedi-
mentary supply was pointed out within the accumu-
lation process. New data were provided in regional
Joseph Canérot et al. 3
studies: normal faulting may occur suddenly and
provide more accommodation than eustatic sea level
changes (Jurassic series from Quercy); third order se-
quences can be diachronous when they are included
within basin infillings provided by different tectonic
plates (Lusitanian and Moroccan basins).
2.3. Relationship between system tracts and mi-
cropaleontological associations
Considering that foraminifers and ostracods consti-
tute good stratigraphical and palaeoenvironmental
markers, Jacques Rey used these microfossils for
his interpretations of variations in sea level change,
palaeogeographic communications between basins,
nourishing supplies and physicochemical proper-
ties impacting benthic communities. In turn, mi-
cropalaeontological associations could also help
identify system tracts.
A first study concerning Toarcian Foraminifera
from Northern Aquitania (Quercy, France) showed
the existence of a close relationship between the
composition of Nodosariidae communities and sea-
level changes. Later on, working on Foraminifera
from the Carixian and Domerian of Quercy and
Grands Causses (France) he confirmed these inter-
pretations and highlighted the contribution of quan-
titative methods to appreciate depth variations in
platform environments. Other studies dealing with
the factorial diversity of deposits and the factorial
amplitude of species led Jacques Rey to draw three
main conclusions: (i) microfossil associations allow
identifying sedimentary system tracts even in homo-
geneous series (such as in marls, for example), low
and high sea levels providing different biocoenotic
signals; (ii) the statistical analysis of micropalaeon-
tological communities can lead to “factorial correla-
tions” at basin scale; (iii) sea level changes influence
the species composition of assemblages and specia-
tion processes.
In his last years, Jacques began new studies on
the North Pyrenean foreland basin infilling but his
declining health broke this new project.
Jacques Rey was the Fontannes (1975) and Bour-
cart (1990) prices winner given by the French
Geological Society. He had a decoration (Palmes
Académiques) given by the French Ministry of Ed-
ucation (1990) and was Doctor Honoris Causa of
Figure 1. Jacques Rey during his talk of “Doc-
tor Honoris Causa” at the Universidade Nova de
Lisboa (Portugal).
the Universidade Nova de Lisboa, Portugal (2012)
(Figure 1).
Jacques Rey was a great specialist of stratigraphy
and developed an integrated stratigraphy approach
in order to give a temporal framework to sedimentary
series and reconstruct the evolution of paleoenviron-
ments and sedimentary basins, particularly during
Jurassic and Cretaceous periods.
The present thematic issue was an opportunity
for his former students and colleagues to celebrate
Professor Jacques Rey for his remarkable career and
achievements in the promotion and development of
integrated stratigraphy. We are deeply honoured and
pleased to contribute to such a tribute to him in this
thematic issue of Comptes Rendus Geoscience enti-
tled “Integrated stratigraphy of the Jurassic and the
Cretaceous”.
Illustrating the value of integrated stratigraphic
approaches to sedimentologists and paleontolo-
gists for high-resolution evaluation of past climatic,
oceanographic, sedimentary, ecological and biogeo-
graphic processes in Earth history, the present issue
includes six original contributions to the fields of
sedimentology and palaeontology, based on original
Jurassic and Cretaceous case studies. Two of them
highlight the value of linking fossil and stratigraphic
studies, not only in taxonomy, evolution, and bios-
tratigraphy, but also in biogeography and for the
reconstruction of paleoenvironments. Studying am-
monites of the Lower Jurassic (Pliensbachian) se-
ries of Southern Vendée (France), Fauré and Bohain
[2022] contribute to improving our understanding of
4 Joseph Canérot et al.
the paleobiogeography of the Lusitanian Basin and
Southern Vendée, and more widely of the North-West
European Bioprovince with regards to the dispersal
of Tethyan marine fauna to the western Europe.
Picollier [2022] explores the rich belemnite faunas
of early Cretaceous deposits (Berriasian–Albian) of
the Vocontian Basin (southeast of France) and re-
minds the value of well-delineated paleontological
species in biostratigraphy based on quantitative and
statistical approaches. The four other contributions
show the interest of an integrated approach for de-
termining the factors controlling sedimentation.
Chemostratigraphic (δ13C) and biostratigraphic cor-
relations between the Poigny borehole (Paris Basin)
and other European sections, associated to other
data (palynological assemblages, dinoflagellates,
clay mineralogy), allow to recognize thirty-three pa-
lynological events and show the dominant role of
sea-level variations in paleoenvironmental changes
during the upper Coniacian-Campanian [Pearce
et al., 2022]. The work by Ferry et al. [2022] con-
tributes to demonstrate the tectonic control of the
forced regression around the Aptian–Albian bound-
ary recorded in the SE France basins, associated to
the “Austrian” tectonic pulse. Duarte et al. [2022]
present a sedimentological, organic, and isotopic
study of the Upper Sinemurian of the S. Pedro de
Moel section (Lusitanian Basin) that reveal the trans-
gressive context of sedimentation and the impact
of diagenetic transformations on δ13C variations.
Finally, the analysis of the organic fraction (Rock-
Eval, Palynofacies. . . ) in late Jurassic deposits of the
Boulonnais (France) by Schnyder et al. [2022] high-
lights the importance of seawater warming for the
occurrence of the Kimmeridgian Organic Rich Bands
deposition in NW Europe.
Conflicts of interest
Authors have no conflict of interest to declare.
References
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Pena Dos Reis, R. (2008). Stratigraphy and allogenic
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Integrated stratigraphy of the Jurassic and the Cretaceous: a tribute to Jacques Rey (1940–2018)

Serge Ferry

Danièle Grosheny

Francis Amédro

Sedimentary record of the “Austrian” tectonic pulse around the Aptian–Albian boundary in SE France, and abroad

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