Results 81 to 90 of about 1,853 (212)
Earth Surface Processes and Landforms, Volume 51, Issue 1, January 2026.Floods are one of the most critical environmental threats in Central Europe. We show the importance of geomorphological records from Ahr flood deposits for reconstructing past high‐magnitude flood events. Our chemolithostratigraphical analysis shows that centennial to millennial scale high‐energy flooding is not the exception but the rule in the Ahr ...
Christoph Zielhofer +9 more
wiley +1 more source
Chemical remobilization of contaminant metals within floodplain sediments in an incising river system: implications for dating and chemostratigraphy [PDF]
, 1998 Metals such as Pb, Zn, Cd and Cu from historical mining activity have been used as stratigraphic markers for dating and provenancing vertically accreted, fine-grained floodplain overbank deposits.
K. A. Hudson-Edwards (17209525) +3 more
core +2 more sources
Carnets de Géologie, 2007 In the Lower Aptian historical stratotype area (Cassis-La Bédoule, SE France), a geochemical study of the Gargasian (Middle Aptian) marl-limestone alternations of the La Marcouline quarry complements data already obtained from Bedoulian (Early Aptian ...
TRONCHETTI Guy +5 more
doaj
Basin Research, Volume 38, Issue 1, January–February 2026.This study of recent exploration drillcore reveals two sequences separated by a disconformity. Basal alluvial fan to shallow marine lithofacies suggest reactivation of basement faults, and a distinct upwelling signature points to a flooded margin, controlled by differential subsidence of diverse Proterozoic lithosphere.
Ross B. Campbell +9 more
wiley +1 more source
SEQUENCE STRATIGRAPHY AND CHEMOSTRATIGRAPHY OF AN INCISED VALLEY FILL WITHIN THE CRETACEOUS BLACKHAWK FORMATION, BOOK CLIFFS, UTAH [PDF]
, 2012 A better constraint on the timing and depositional development of the incised valley fill (IVF) of the Desert Member of the upper Cretaceous Blackhawk Formation was needed to help understand the development of incised valley fills.
Cornwell, Christine Frasca
core
EnergiesThe Upper Silesian Coal Basin (USCB), located in southern Poland, is the major coal basin in Poland, and all technological types of hard coal, including coking coal, are exploited. It is also an area of high potential for coal-bed methane (CBM).
Ewa Krzeszowska
doaj +1 more source
Carbon isotope chemostratigraphy and petrography of the Yucca Formation, West Texas [PDF]
, 2022 The Yucca Formation is a Lower Cretaceous sedimentary unit found across West Texas. The Cretaceous Period was a time of major global climate change, and the Yucca Formation could record some of those major climatic shifts. However, age constraint must be
Biebesheimer, Ellie
core
Chemostratigraphy of the Pliensbachian, Puesto Araya Formation (Neuquén Basin, Argentina)
Geologica Acta, 2005 In a preliminary attempt to establish an isotope stratigraphy, strontium, carbon and oxygen isotope ratios were determined from marine biogenic carbonates of Pliensbachian age, in the context of scheme of local ammonite Zones correlatable to the European
Susana A. Valencio +4 more
doaj +1 more source
Carbon isotope fluctuations in Precambrian carbonate sequences of several localities in Brazil
Anais da Academia Brasileira de Ciências, 2000 Carbon isotope fluctuations in Precambrian sedimentary carbonates between 2.8 Ga and 0.60 Ga in Brazil are examined in this study. The carbonate facies of the BIF of the 2.8 Ga-old Carajás Formation, state of Pará in northern Brazil, has rather ...
SIAL ALCIDES N. +6 more
doaj
d13Ccarbonate chemostratigraphy of the Carrapateira Outlier (Lower Kimmeridgian), Southern Portugal [PDF]
, 2014 The Carrapateira Outlier (CO) located 20 km north of Sagres is formed by Upper Triassic to Kimmeridgian sediments. The studied section is located at Três Angras bay and consists of approximately 50 m of limestones interbedded with marls, assigned to ...
Borges, M. +6 more
core +1 more source