Northern Teruel Graben (Neogene), Northeastern Spain
Published:January 01, 2000
Ana M. Alonso-Zarza, José P. Calvo, Jan van Dam, Luis Alcalá, 2000. "Northern Teruel Graben (Neogene), Northeastern Spain", Lake Basins Through Space and Time, E. H. Gierlowski-Kordesch, K. R. Kelts
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The Teruel graben, also named Teruel fosse (Mein etal., 1990) and Teruel basin, is located on the northeastern side of the Iberian Peninsula (Figure 1). The basin isoriented north-northeast-south-southwest and occupiesan area of approximately 100 km in length and 15 km in width. It is filled by a rather complete Neogene successionreaching 500 m in thickness (Moissenet, 1983,1989). The Teruel basin is regarded as a half-grabenbounded by several en echelon north-northeastsouth-southwest normal faults that are mainly locatedin the eastern part of the basin (Anadon and Moissenet,1996). Hanging-wall subsidence is westward of the faults, whereas footwall uplift is eastward of the faults.This structure resulted in tilting of the Neogene deposits that, in general, dip toward the east-southeast.The main tectonic lineation that controlled the formation of the basin is in contrast with the typical northwest southeast Paleogene compressional structures of the Iberian Chain (Figure 1), thus providing evidence of a gradual change in stress regime throughout the upperOligocene in this area of the northeast Iberian Peninsula(Simon, 1984). Formation of the basin is envisagedas related to the extensional movements linked to the rifting of the western Mediterranean during the Miocene (Anadon et al., 1989; Roca, 1996).
In the northern part of the Teruel graben (TeruelAlfambraregion) (Figure 1), the Neogene successionis bounded by siliciclastic and evaporate formations of Triassic age, as well as by Jurassic carbonate deposits. The oldest Neogene deposits, which un conformablyoverlie Upper Jurassic formations in the491eastern margin of the basin, have been dated as lowe rAragonian (Montalvos mammal locality) (MNT, Figure2); however,
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Lake Basins Through Space and Time
The geology of lake basins was a popular subject in the 19th century, fired by interest in the discoveries during the exploration of the American west. This book builds on the experience of an international group of limnogeology enthusiasts. The science of limnogeology is of importance to petroleum geology. Although not every limnic deposit is an exploration target, a comprehensive understanding of diverse lacustrine environments of deposition can help exploration strategies. The volume presents 60 new basin summaries, a few of which are Mongolia, southeastern Kazakhstan, southern Scotland, northwest China, the U.S. southwest, southern France, northeastern Spain, central Italy, and northwestern Mexico.