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Column Headings - Proposed NGDC/Core Curators' Format (For Core Samples, Only)

Column Heading

Data Pertains to

Example

Institution

Sample

SIO

Ship

Sample

Melville

Cruise ID

Sample

CATO

Sample ID

Sample

12PG

Date Collected

Sample

19720824

Latitude Degree

Sample

07

Latitude Whole Minute

Sample

01

Latitude Tenths of Minutes

Sample

9

N or S

Sample

S

Longitude Degree

Sample

169

Longitude Whole Minute

Sample

08

Longitude Tenths of Minutes

Sample

2

E or W

Sample

W

Decimal Latitude

Sample

N/A (Position data given in minutes.)

Decimal Longitude

Sample

N/A (Position data given in minutes.)

Latitude Top

Sample

N/A (Use if lat./long. not known exactly.)

Latitude Bottom

Sample

N/A (Use if lat./long. not known exactly.)

Longitude Left

Sample

N/A (Use if lat./long. not known exactly.)

Longitude Right

Sample

N/A (Use if lat./long. not known exactly.)

Type Position Data

Sample

Minutes (Only one type position data is entered.)

Water Depth (m)

Sample

5840

Sample Device Code

Sample

Trigger/piston (T is current NGDC code.)

Storage Method

Sample

Refrigerated (B is current NGDC code.)

Coring/Storage Artifacts

Sample

Dried, many desiccation cracks (1998).

Core Length (cm)

Sample

92

Core Diameter (cm)

Sample

004

Bulk Weight

Sample

N/A (Use for core-catcher samples.)

Principal Investigator

Sample

Peter Lonsdale

Subsequent Describer(s)/Date(s)

Sample

T. Walsh/ 1973; P. Worstell/1998

Point Interval Depth (cm)

Point

88

% Sand-Sized

Point

1

% Silt-Sized

Point

39

% Clay Sized

Point

60 (Includes clay-sized grains of all components.)

% Clay Mineral

Point

50 (Includes clay minerals only.)

Abundance Clay Mineral

Point

Abundant

% Mica

Point

NLF (Not looked for.)

Abundance Mica

Point

N/A (Not necessary if absolute % given.)

% Glauconite

Point

0

Abundance Glauconite

Point

N/A (Not necessary if absolute % given.)

% Calcareous Undifferentiated

Point

<1

Abundance Undifferentiated

Point

N/A (Not necessary if absolute % given.)

% Calc. Nannofossils Undifferentiated

Point

0

Abundance Calc. Nannofossils Undiff.

Point

N/A (Not necessary if absolute % given.)

% Coccoliths

Point

N/A (0 nannoplankton already given.)

Abundance Coccoliths

Point

N/A (0 nannoplankton already given.)

% Discoasters

Point

N/A (0 nannoplankton already given.)

Abundance Discoasters

Point

N/A (0 nannoplankton already given.)

% Forams Undifferentiated

Point

0

Abundance Forams Undifferentiated

Point

N/A (Not necessary if absolute % given.)

% Planktonic Forams

Point

N/A (0 forams already given.)

Abundance Planktonic Forams

Point

N/A (0 nannoplankton already given.)

% Benthic Forams

Point

N/A (0 nannoplankton already given.)

Abundance Benthic Forams

Point

N/A (0 nannoplankton already given.)

% Pteropods/Heteropods

Point

0

Abundance Pteropods/Heteropods

Point

N/A (Not necessary if absolute % given.)

 

Column Heading

Data Pertains to

Example

% Ostracods

Point

N/A (Relative abundance given.)

Abundance Ostracods

Point

Absent

% Shell Fragments

Point

N/A (Relative abundance given.)

Abundance Shell Fragments

Point

Absent

% Biosiliceous Undifferentiated

Point

N/A (Not used if more detailed data entered.)

Abundance Biosiliceous Undifferentiated

Point

N/A (Not used if more detailed data entered.)

% Diatoms

Point

N/A (Relative abundance given.)

Abundance Diatoms

Point

Absent

% Radiolarians

Point

N/A (Relative abundance given.)

Abundance Radiolarians

Point

Absent

% Sponge Spicules

Point

N/A (Relative abundance given.)

Abundance Sponge Spicules

Point

Trace

% Silicoflagellates

Point

N/A (Relative abundance given.)

Abundance Silicoflagellates

Point

Absent

% Ichthyoliths

Point

N/A (Relative abundance given.)

Abundance Ichthyoliths

Point

Trace

% Plant Material Undifferentiated

Point

N/A (Relative abundance given.)

Abundance Plant Material Undiff.

Point

Absent

% Pollen/Spores

Point

N/A (Plant material already given as absent.)

Abundance Pollen/Spores

Point

N/A (Plant material already given as absent.)

% Volcanic Glass

Point

5 (The encoder could give both absolute %

Abundance Volcanic Glass

Point

Rare and relative abundance data; relative

% Zeolites

Point

35 abundance data could be derived

Abundance Zeolites

Point

Abundant from the absolute %.)

% Oxides Undifferentiated

Point

N/A (Not used if more detailed data entered.)

Abundance Oxides Undifferentiated

Point

N/A (Not used if more detailed data entered.)

% Fe Oxides

Point

10

Abundance Fe Oxides

Point

Common

% Pyrite/Marcasite

Point

0

Abundance Pyrite/Marcasite

Point

Absent

% Ferromagnesian Undifferentiated

Point

15

Abundance Ferromagnesian Mins. Undiff.

Point

Common

% Heavy Minerals Undifferentiated

Point

NLF (Not looked for.)

Abundance Heavy Minerals Undiff.

Point

NLF (Not looked for.)

% Barite

Point

NLF (Not looked for.)

Abundance Barite

Point

NLF (Not looked for.)

% Halite

Point

0

Abundance Halite

Point

Absent

% Gypsum/Anhydrite

Point

0

Abundance Gypsum/Anhydrite

Point

Absent

% Dolomite/Aragonite

Point

0

Abundance Dolomite/Aragonite

Point

Absent

% Phosphate

Point

NLF (Not looked for.)

Abundance Phosphate

Point

NLF (Not looked for.)

% Siliciclastics Undifferentiated

Point

5

Abundance Siliciclastics Undifferentiated

Point

Rare

% Quartz

Point

N/A (Included in Siliciclastics Undifferentiated.)

Abundance Quartz

Point

N/A (Included in Siliciclastics Undifferentiated.)

% Feldspar Undifferentiated

Point

N/A (Included in Siliciclastics Undifferentiated.)

Abundance Feldspar Undifferentiated

Point

N/A (Included in Siliciclastics Undifferentiated.)

% Microtektites

Point

0

Abundance Microtektites

Point

Absent

% Rock Fragments

Point

0

Abundance Rock Fragments

Point

Absent

Other Components (List)

Point

Hornblende, plagioclase, acidic glass, palagonite

 




Column Heading

Data Pertains to

Example

Smear-Slide Comments

Point

9cm. Traces only biosiliceous fossils. Ferromag. minerals unusually common. (Add also comments re fossil preservation here.)

Depth Top (cm)

Interval

57

Depth Bottom (cm)

Interval

92

Upper Contact

Interval

Gradational texture change.

Munsell Color Code(s)

Interval

10YR 4/3 and 10YR 4/4

Induration

Interval

N/A (Use only for fresh cores.)

Structures (Tectonic)

Interval

None

Clasts/Inclusions

Interval

Mn nodules to 3cm at top.

Mottling/Burrows

Interval

60-80cm. Slight mottling.

Bedding/Banding

Interval

90-92cm. Darker band.

Age

Interval

Pleistocene

Age Basis

Interval

Radiolarians - Lonsdale, 1973

Interval No.

Interval

2

Sediment/Rock Type

Interval

Zeolitic-silty clay with ferromagnesian minerals. (Could be computer derived if absolute percentages given.)

Interval Comments

Interval

57-92cm. More and larger zeolites down core.