Abundance of planktonic foraminifera from IODP Hole 339-U1386C ...

• Main Authors: Ducassou, Emmanuelle, Fournier, L A, Sierro, Francisco Javier, Alvarez Zarikian, Carlos A, Lofi, Johanna, Flores, José-Abel, Roque, C
• Format: Dataset
• Language: English
• Published: PANGAEA 2017
• Subjects: Description; Sample code/label; DEPTH, sediment/rock; Dentoglobigerina altispira; Dentoglobigerina baroemoenensis; Globigerina apertura; Globigerina bulloides; Globigerina calida; Globigerina obesa; Beella digitata; Globigerinella aequilateralis; Globigerina falconensis; Globigerinella siphonifera; Globigerinita glutinata; Globigerinoides conglobatus; Globigerinoides extremus; Globigerinoides ruber white; Globigerinoides immaturus; Globigerinoides sacculifer; Globorotalia cf. crassula; Globorotalia crassaformis; Globorotalia hirsuta dextral; Globorotalia hirsuta sinistral; Globorotalia inflata dextral; Globorotalia inflata sinistral; Globorotalia margaritae; Globorotalia menardii; Globorotalia miocenica; Globorotalia puncticulata dextral; Globorotalia puncticulata sinistral; Globorotalia scitula dextral; Globorotalia scitula sinistral; Globorotalia truncatulinoides dextral; Globorotalia truncatulinoides sinistral; Globoturborotalita rubescens; Globoturborotalita tenella; Neogloboquadrina atlantica dextral; Neogloboquadrina atlantica sinistral; Neogloboquadrina pachyderma dextral; Neogloboquadrina pachyderma sinistral; Orbulina universa; Sphaeroidinella dehiscens; Sphaeroidinellopsis seminulina; Sphaeroidinellopsis subdehiscens; Turborotalita quinqueloba; Foraminifera, planktic indeterminata; Lithologic unit/sequence; Drilling/drill rig; DSDP/ODP/IODP sample designation; Abundance estimate; Neogloboquadrina pachyderma; Planktonic foraminifera
• Online Access: https://dx.doi.org/10.1594/pangaea.870711; https://doi.pangaea.de/10.1594/PANGAEA.870711

The base of the Faro contouritic drift (IODP Site U1386) on the northern margin of the Gulf of Cádiz (Algarve margin) is characterized by two sequences of frequent gravity deposits with different ages and compositions. Among these gravity deposits, several relatively thick debrites (up to 12 m) have been observed and studied in detail. Sedimentological analyses have been performed and because of non-turbulent behavior of debris flows, detailed micropaleontological studies could be realized. Planktonic foraminifera thus allowed establishing a detailed biostratigraphy of these deposits. Benthic foraminifer and ostracod assemblageswere used to evaluate the origin of the sediment composing these debris flows and estimate their run-out distance. These debrites are dated fromEarly Pliocene and early Pleistocene, andwere deposited in amesobathyal environment. They comprise silty mud clasts and matrixes with sand content up to 34%. The Early Pliocene debrites are bioclast-rich whereas the Early Pleistocene debrite ... : P = present (< 1%)R = rare (1 - 5%)F = few (> 5 - 10%)A = abundant (> 10 - 30%) ...