TY - JOUR
T1 - Middle miocene to pleistocene planktonic foraminiferal biostratigraphy in the eastern equatorial Pacific Ocean
AU - Hayashi, Hiroki
AU - Idemitsu, Kyoko
AU - Wade, Bridget S.
AU - Idehara, Yuki
AU - Kimoto, Katsunori
AU - Nishi, Hiroshi
AU - Matsui, Hiroki
PY - 2013/4
Y1 - 2013/4
N2 - We present a detailed dataset of planktonic foraminiferal biohorizons to enhance a biostratigraphy for the eastern equatorial Pacific. Middle Miocene to Pleistocene planktonic foraminiferal biostratigraphy is established using 269 samples from Cores 1H to 40H recovered from Integrated Ocean Drilling Program (IODP) Hole U1338B. In addition to the onboard study of Hole U1338A, a total of 60 biohorizons are recognized with three grades of reliability. Generally, these biohorizons are in agreement with each other and consistent with shipboard magnetostratigraphy, except for several discrepancies that may be caused by ecological diachronous processes. The studied sequence can be correlated with Zone M7 to Subzone PT1b. However, we cannot detect Miocene zones M6, M10, and M12 in this sequence because of discrepancies in some zonal marker biohorizons.
AB - We present a detailed dataset of planktonic foraminiferal biohorizons to enhance a biostratigraphy for the eastern equatorial Pacific. Middle Miocene to Pleistocene planktonic foraminiferal biostratigraphy is established using 269 samples from Cores 1H to 40H recovered from Integrated Ocean Drilling Program (IODP) Hole U1338B. In addition to the onboard study of Hole U1338A, a total of 60 biohorizons are recognized with three grades of reliability. Generally, these biohorizons are in agreement with each other and consistent with shipboard magnetostratigraphy, except for several discrepancies that may be caused by ecological diachronous processes. The studied sequence can be correlated with Zone M7 to Subzone PT1b. However, we cannot detect Miocene zones M6, M10, and M12 in this sequence because of discrepancies in some zonal marker biohorizons.
KW - IODP Exp 321
KW - Middle Miocene to Pleistocene
KW - biostratigraphy
KW - equatorial Pacific
KW - planktonic foraminifera
UR - http://www.scopus.com/inward/record.url?scp=84876729173&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84876729173&partnerID=8YFLogxK
U2 - 10.2517/1342-8144-17.1.91
DO - 10.2517/1342-8144-17.1.91
M3 - Article
AN - SCOPUS:84876729173
VL - 17
SP - 91
EP - 109
JO - Paleontological Research
JF - Paleontological Research
SN - 1342-8144
IS - 1
ER -