Planktic foraminifer census data from Northwind Ridge core 5 Arctic Ocean

Online link https://geo-nsdi.er.usgs.gov/metadata/open-file/91-346/metadata.faq.html
Description The U.S. Geological Survey recovered 9 piston cores from the Northwind Ridge in the Canada Basin of the Arctic Ocean from a cruise of the USCGC Polar Star during 1988. Preliminary analysis of the cores suggests sediments deposited on Northwind Ridge pres
Originators Foley, Kevin M. and Poore, Richard Z.
Publication U.S. Geological Survey Open-File Report 91-346

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data record

All measurements reported from a core sample.

Label Definition
depth1 Depth in cm of the top of the sampled interval. For samples 89 through 131 this value indicates instead the midpoint of the sampled interval.
depth2 Depth in cm of the bottom of the sampled interval. For samples 89 through 131 this value is meaningless.
wt<62um Weight in grams of that part of the sample passing through the 62um sieve.
wt%<62um Percentage of the total sample weight represented by the material passing through the 62um sieve.
wt62um-2mm Weight in grams of that part of the sample passing through the 2mm sieve but retained on the 62um sieve.
wt%62um-2mm Percentage of the total sample weight represented by the material passing through the 2mm sieve but retained on the 62um sieve.
wt>2mm Weight in grams of that part of the sample retained on the 2mm sieve.
wt%>2mm Percentage of the total sample weight represented by the material retained on the 2mm sieve.
total wt Total weight of the sample.
1/split Proportion of the sample from which specimens were counted; a value of 1 indicates all of the sample was used to derive the counts, a value of 2 indicates half of the sample was used, and so on.
spach Neogloboquadrina pachyderma (Ehrenberg) left coiling.
dpach Neogloboquadrina pachyderma (Ehrenberg) right-coiling. This category is restricted to specimens with 4 chambers in the ultimate whorl. Right-coiling specimens that have more than 4 chambers in the ultimate whorl are tabulated as "dupac".
dupac This category is used for specimens of right-coiling Neogloboquadrina with more than 4 chambers in the ultimate whorl.
other Deformed planktic specimens and specimens resembling Turborotalita quinqueloba.
total plank Total number of planktic foraminifers in the counting split.
total benth Total number of benthic foraminifers in the counting split.
plank/gram>150um The total number of planktic foraminifers >150um in the sample divided by the weight of the sample in grams.
benth/gram>150um The total number of benthic foraminifers >150um in the sample divided by the weight of the sample in grams.
%dextral The percentage of specimens of Neogloboquadrina pachyderma in the sample that are dextral (i.e. right-coiling).