Smear slide grain counts from IODP Site 323-U1342 ...

Here we present new grain count data from from Integrated Ocean Drilling Program (IODP) Expedition 323 Site U1342 Holes A, C, and D. New records of sediment composition from laminated and non-laminated were determined from smear slide (quantitative grain counts) and particle size analyses. A subset...

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Bibliographic Details
Main Authors: Aiello, Ivano W, Knudson, Karla P, Ravelo, Ana Christina, Drake, Michelle K
Format: Dataset
Language:unknown
Published: PANGAEA 2021
Subjects:
Bering Sea
Coccolithophores
diatoms
Foraminifera
grain counts
iron fertilization
laminated
North Pacific
Sediments
smear slide
sponge spicules
Event label
Sample code/label
Sample type
Depth, top/min
Depth, bottom/max
AGE
Diatoms, pennales
Diatoms, centrales
Calcareous spicules
Radiolarians
Silicoflagellates
Coccoliths
Volcanic components
Clay
Opaque minerals
Siliciclastics
Total
Run
Sample mass
Size fraction
Standard deviation
Size fraction mode size
Drilling/drill rig
see abstract
Exp323
Joides Resolution
Pacific
Online Access:https://dx.doi.org/10.1594/pangaea.933699
https://doi.pangaea.de/10.1594/PANGAEA.933699
Description
Summary:Here we present new grain count data from from Integrated Ocean Drilling Program (IODP) Expedition 323 Site U1342 Holes A, C, and D. New records of sediment composition from laminated and non-laminated were determined from smear slide (quantitative grain counts) and particle size analyses. A subset of samples from three laminated intervals (672-697 ka, 826-836 ka, and 847-851 ka) and four adjacent massive intervals (668-671 ka, 822-825 ka, 803-845 ka, and 853-856 ka) were selected for analyses. Sediment smear slides were examined with a transmitted light petrographic microscope equipped with a standard eyepiece micrometer. Biogenic (pennate and centric diatoms, silicoflagellates, sponge spicules, foraminifers, and coccolithophores), mineral (clay minerals, silt- to sand-size siliciclastics), and volcaniclastic components were identified and their percentage abundances were visually determined under a petrographic microscope using a 40X objective and 10X eyepiece. For each sample, 3 counts were done on ...

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