NOAA logo, National Centers for Environmental Information, National Oceanic and Atmospheric Administration NSF logo, National Science Foundation, Division of Ocean Sciences

Core Data from the Deep Sea Drilling Project


Leg :  6    Depth Top/Bottom of Layer(m) :     0.00/    1.50
Hole:  53A  Depth to Top of Core(m)      :     0.00
Core:   1   Depth Top/Bottom Interval(mm):   00/1500
Sect:  1
 
Visual Text Description:
 ZEOLITIC CLAY;C 10YR3/4-DARK YELLOWISH BROWN;U PIECES OF CONSOLIDATED 
CLAY UP TO 5CM;M CLAY,  ZEOLITES;H POORLY LITHIFIED;Z 00000000;Z 
31210000.3350 
 
 
Leg :  6    Depth Top/Bottom of Layer(m) :     1.50/    3.00
Hole:  53A  Depth to Top of Core(m)      :     0.00
Core:   1   Depth Top/Bottom Interval(mm):   00/1500
Sect:  2
 
Visual Text Description:
 ZEOLITIC CLAY;C 10YR3/4-DARK YELLOWISH BROWN;U PEBBLE SIZED LUMPS OF 
MOTTLED BROWN TO LIGHT BROWN SEMICOHERENT CLAY;M CLAY,ZEOLITES,VOLCANIC 
GLASS;H POORLY LITHIFIED;Z 00000000;Z 31210000.3350 
 
 
Leg :  6    Depth Top/Bottom of Layer(m) :     3.00/    4.50
Hole:  53A  Depth to Top of Core(m)      :     0.00
Core:   1   Depth Top/Bottom Interval(mm):   00/1500
Sect:  3
 
Visual Text Description:
 ZEOLITIC CLAY;C 10YR3/4-DARK YELLOW BROWN;S SCATTERED LUMPS OF MORE 
COHERENT SEDIMENT;M CLAY,  ZEOLITES;H POORLY LITHIFIED;Z 00000000;Z 
00000000 
 
 
Leg :  6    Depth Top/Bottom of Layer(m) :     4.50/    6.00
Hole:  53A  Depth to Top of Core(m)      :     0.00
Core:   1   Depth Top/Bottom Interval(mm):   00/1500
Sect:  4
 
Visual Text Description:
 ZEOLITIC CLAY;C 10YR3/4-DARK YELLOW BROWN;S SCATTERED LUMPS COHERENT CLAY;
M CLAY,ZEOLITES;H POORLY LITHIFIED;Z 00000000;Z 00000000 
 
 
Leg :  6    Depth Top/Bottom of Layer(m) :     6.00/    7.50
Hole:  53A  Depth to Top of Core(m)      :     0.00
Core:   1   Depth Top/Bottom Interval(mm):   00/1500
Sect:  5
 
Visual Text Description:
 CLAY;C 10YR3/4-DARK YELLOWISH BROWN;U SCATTEREDPIECES OF CLAY OR ALTERED 
VOLCANIC FRAGMENTS;M CLAY,ZEOLITES;H POORLY LITHIFIED;Z 00000000;Z 
00000000 
 
 
Leg :  6    Depth Top/Bottom of Layer(m) :     7.50/    8.65
Hole:  53A  Depth to Top of Core(m)      :     0.00
Core:   1   Depth Top/Bottom Interval(mm):   00/1150
Sect:  6
 
Visual Text Description:
 CLAY;C 10YR3/4-DARK YELLOW BROWN;O FROM 20 TO 38CMAND 42 TO 53CM AND 63 
TO 74CM ARE PATCHES OF MORECOHERENT SEDIMENT;H SOFT,POORLY LITHIFIED;Z 
00000000;Z 00000000 
 
 
Leg :  6    Depth Top/Bottom of Layer(m) :     8.65/    9.00
Hole:  53A  Depth to Top of Core(m)      :     0.00
Core:   1   Depth Top/Bottom Interval(mm): 1150/1500
Sect:  6
 
Visual Text Description:
 ZEOLITIC CLAY;C 7.5YR4/4-BROWN;M CLAY,ZEOLITES;OAT 140CM PATCH OF MORE 
COHERENT SEDIMENT;H SOFT;Z 00000000;Z 00000000 
 
 
Leg :  6    Depth Top/Bottom of Layer(m) :    22.35/   23.10
Hole:  53A  Depth to Top of Core(m)      :    21.60
Core:   2   Depth Top/Bottom Interval(mm):  750/1500
Sect:  1
 
Visual Text Description:
 MUDDY RADIALARIAN VOLCANIC SAND;C 10YR4/4-DARK YELLOW BROWN;D SEDIMENT 
SOUPY SECTION NOT OPENED;M VOLCANIC GLASS,CLAY,RADIOLARIA;H SOUPY;Z 
00000000;Z 00000000 
 
 
Leg :  6    Depth Top/Bottom of Layer(m) :    23.10/   24.60
Hole:  53A  Depth to Top of Core(m)      :    21.60
Core:   2   Depth Top/Bottom Interval(mm):   00/1500
Sect:  2
 
Visual Text Description:
 MUDDY RADIOLARIAN VOLCANIC SAND;C 10YR4/4-YELLOWBROWN;D SECTION NOT 
OPENED SOUPY SEDIMENT;M VOLCANICGLASS,CLAY MINERALS;H SOUPY;Z 00000000;Z 
00000000 
 
 
Leg :  6    Depth Top/Bottom of Layer(m) :    24.60/   25.25
Hole:  53A  Depth to Top of Core(m)      :    21.60
Core:   2   Depth Top/Bottom Interval(mm):   00/ 650
Sect:  3
 
Visual Text Description:
 VOLCANIC SAND;C 10YR7/1-LIGHT GRAY;U FRAGMENTS OFPUMICE AND BROWN FRIABLE 
LITHIFIED TUFF,FRAGMENTS UPTO 2CM;M GLASS DOMINANT;O SAND GENERALLY WELL 
SORTED;H SOFT;Z 00000000;Z 00000000 
 
 
Leg :  6    Depth Top/Bottom of Layer(m) :    25.25/   25.75
Hole:  53A  Depth to Top of Core(m)      :    21.60
Core:   2   Depth Top/Bottom Interval(mm):  650/1150
Sect:  3
 
Visual Text Description:
 ZEOLITIC RADIOLARIAN CLAY;C 10YR4/3-DARK BROWN;U BETWEEN 70 AND 75CM IS A 
FRAGMENT OF LIGHT GREYVOLCANIC SAND;M CLAY,RADIOLARIANS;H SOFT;Z 00000000;
Z 00000000 
 
 
Leg :  6    Depth Top/Bottom of Layer(m) :    25.75/   25.84
Hole:  53A  Depth to Top of Core(m)      :    21.60
Core:   2   Depth Top/Bottom Interval(mm): 1150/1240
Sect:  3
 
Visual Text Description:
 VOLCANIC SAND;C 10YR7/1-LIGHT GREY;U PUMICE FRAGMENTS, BROWN LITHIFIED 
TUFF;M GLASS DOMINANT;H SOFT;Z 00000000;Z 00000000 
 
 
Leg :  6    Depth Top/Bottom of Layer(m) :    25.84/   26.10
Hole:  53A  Depth to Top of Core(m)      :    21.60
Core:   2   Depth Top/Bottom Interval(mm): 1240/1500
Sect:  3
 
Visual Text Description:
 SILTY ZEOLITIC RADIOLARIAN CLAY;C 10YR4/3-DARKBROWN;M CLAY,RADIOLARIANS;H 
SOFT;Z 00000000;Z 00000000 
 
 
Leg :  6    Depth Top/Bottom of Layer(m) :    26.10/   26.16
Hole:  53A  Depth to Top of Core(m)      :    21.60
Core:   2   Depth Top/Bottom Interval(mm):   00/  60
Sect:  4
 
Visual Text Description:
 ASH;C 10YR4/2-DARK GREYISH BROWN;M GLASS DOMINANT;O CLAY TO SILT SIZED 
GRAINS;H SOFT;Z 00000000;Z 00000000 
 
 
Leg :  6    Depth Top/Bottom of Layer(m) :    26.16/   26.19
Hole:  53A  Depth to Top of Core(m)      :    21.60
Core:   2   Depth Top/Bottom Interval(mm):   60/  90
Sect:  4
 
Visual Text Description:
 COARSE SANDY ASH;M GLASS DOMINANT;H SOFT;Z 00000000;Z 00000000 
 
 
Leg :  6    Depth Top/Bottom of Layer(m) :    26.19/   26.48
Hole:  53A  Depth to Top of Core(m)      :    21.60
Core:   2   Depth Top/Bottom Interval(mm):   90/ 380
Sect:  4
 
Visual Text Description:
 ASH;C 10YR4/2-DARK GREYISH BROWN;M GLASS DOMINANT;O PUMICE FRAGMENTS 
THROUGHOUT CORE,SILT TO CLAYSIZED GRAINS;H SOFT;Z 00000000;Z 00000000 
 
 
Leg :  6    Depth Top/Bottom of Layer(m) :    26.48/   26.53
Hole:  53A  Depth to Top of Core(m)      :    21.60
Core:   2   Depth Top/Bottom Interval(mm):  380/ 430
Sect:  4
 
Visual Text Description:
 COARSE SANDY ASH;M GLASS DOMINANT;H SOFT;Z 00000000;Z 00000000 
 
 
Leg :  6    Depth Top/Bottom of Layer(m) :    26.53/   27.60
Hole:  53A  Depth to Top of Core(m)      :    21.60
Core:   2   Depth Top/Bottom Interval(mm):  430/1500
Sect:  4
 
Visual Text Description:
 ASH;C 10YR4/2-DARK GREYISH BROWN;M GLASS DOMINANT;O PIECES OF WEATHERED 
PUMICE THROUGHOUT CORE,AT 145CM TWO PIECES OF BLACK ASH;H SOFT;Z 00000000;
Z 00000000 
 
 
Leg :  6    Depth Top/Bottom of Layer(m) :    27.60/   29.10
Hole:  53A  Depth to Top of Core(m)      :    21.60
Core:   2   Depth Top/Bottom Interval(mm):   00/1500
Sect:  5
 
Visual Text Description:
 CLAYEY ASH;C 10YR4/2-DARK GREYISH BROWN,10YR3/2-VERY DARK GRAYISH BROWN,
10YR2/1-VERY DARK GREYISHBLACK;M DOMINANT GLASS;O LAYERS OF SOFT ASH 
ALTERNATE WITH DRYER MORE COMPACT LAYERS,LAYER FROM 10 TO 40 CM THICK;H 
SLIGHTLY LITHIFIED;Z 00000000;Z 00000000 
 
 
Leg :  6    Depth Top/Bottom of Layer(m) :    29.10/   30.60
Hole:  53A  Depth to Top of Core(m)      :    21.60
Core:   2   Depth Top/Bottom Interval(mm):   00/1500
Sect:  6
 
Visual Text Description:
 CLAYEY ASH WITH RADIOLARIA;C 10YR4/3-BROWN,10YR4/2-DARK GRAYISH BROWN,
10YR4/3-BROWN;S BROWN MOTTLESBETWEEN 105 AND 110CM;D DEFORMATION AT 
CONTACTS BETWEEN DRIER COMPACT AND MOIST SOFT ASH;U SMALL UP TO3MM PIECES 
OF GLASS WITH MAGNETITE OCTAHEDRONS;MGLASS,RADIOLARIANS,NANNUS;O BEDS 
MOIST SOFT ASHFROM 5 TO 25CM THICK ALTERNATE WITH DRIER MORE COMPACT BEDS 
10 TO 20CM THICK;H SLIGHTLY LITHIFIED;Z 00000000;Z 00000000 
 
 
Leg :  6    Depth Top/Bottom of Layer(m) :    53.30/   54.80
Hole:  53A  Depth to Top of Core(m)      :    53.30
Core:   3   Depth Top/Bottom Interval(mm):   00/1500
Sect:  1
 
Visual Text Description:
 ASH;C 10YR3/2-VERY DARK GREYISH BROWN;U ABUNDANTPEBBLES VISIBLE WITH 
X-RAYS;M GLASS;P RADIOLARIANS,CLAY;O TOO SOUPY TOO SPLIT;H VERY POORLY 
LITHIFIED;Z 00000000;Z 00000000 
 
 
Leg :  6    Depth Top/Bottom of Layer(m) :    54.80/   56.30
Hole:  53A  Depth to Top of Core(m)      :    53.30
Core:   3   Depth Top/Bottom Interval(mm):   00/1500
Sect:  2
 
Visual Text Description:
 PEBBLY SILT;C 10YR4/3-BROWN,10YR4/2-DARK GREYISHBROWN;D SECTION SHOWS 
FLOW DUE TO DRILLING;U PEBBLESTO 10CM BUT MOST COMMONLY 5-25MM WITH ROUND 
TO ANGULAR SHAPE,PEBBLES ARE BLACK PUMICE AND DARK GREYISHBROWN LITHIFIED 
ASH WITH SPECKS OF MAGNETITE;M GLASS,CLAY,RADIOLARIANS;H POORLY LITHIFIED;
Z 00000000;Z 00000000 
 
 
Leg :  6    Depth Top/Bottom of Layer(m) :    56.30/   56.43
Hole:  53A  Depth to Top of Core(m)      :    53.30
Core:   3   Depth Top/Bottom Interval(mm):   00/ 130
Sect:  3
 
Visual Text Description:
 ASHY SILT;C 10YR4/3-BROWN;U PUMICE AND GLASS GRANULES;M GLASS;P 
RADIOLARIANS,SPONGE;H POORLY LITHIFIED;H SOFT;Z 00000000;Z 00000000 
 
 
Leg :  6    Depth Top/Bottom of Layer(m) :    56.43/   56.63
Hole:  53A  Depth to Top of Core(m)      :    53.30
Core:   3   Depth Top/Bottom Interval(mm):  130/ 330
Sect:  3
 
Visual Text Description:
 ASH;C 2.5Y4/2-DARK GREYISH BROWN;H SOFT;Z 00000000;Z 00000000 
 
 
Leg :  6    Depth Top/Bottom of Layer(m) :    56.63/   56.67
Hole:  53A  Depth to Top of Core(m)      :    53.30
Core:   3   Depth Top/Bottom Interval(mm):  330/ 370
Sect:  3
 
Visual Text Description:
 ASH;C 5Y2/1-BLACK;H SOFT;Z 00000000;Z 00000000 
 
 
Leg :  6    Depth Top/Bottom of Layer(m) :    56.67/   56.80
Hole:  53A  Depth to Top of Core(m)      :    53.30
Core:   3   Depth Top/Bottom Interval(mm):  370/ 500
Sect:  3
 
Visual Text Description:
 ASHY CLAY;C 5Y4/1-DARK GREY,5Y5.5/1-GREY;S MOTTLES;M GLASS,CLAY,
NANNOFOSSILS;O COMPACT AND DRY SEDIMENT;H SLIGHTLY LITHIFIED;Z 00000000;Z 
00000000 
 
 
Leg :  6    Depth Top/Bottom of Layer(m) :    56.80/   56.82
Hole:  53A  Depth to Top of Core(m)      :    53.30
Core:   3   Depth Top/Bottom Interval(mm):  500/ 520
Sect:  3
 
Visual Text Description:
 ASH;C 5Y2/1-BLACK;H FIRM;Z 00000000;Z 00000000 
 
 
Leg :  6    Depth Top/Bottom of Layer(m) :    56.82/   57.32
Hole:  53A  Depth to Top of Core(m)      :    53.30
Core:   3   Depth Top/Bottom Interval(mm):  520/1020
Sect:  3
 
Visual Text Description:
 ASHY CLAY WITH NANNOS;C 5Y4/1-DARK GREY,5Y5.5/1-GREY;S MOTTLES;M GLASS,
CLAY,NANNOFOSSILS;O COMPACTAND DRY;H SLIGHTLY LITHIFIED;H FIRM;Z 00000000;
Z 00000000 
 
 
Leg :  6    Depth Top/Bottom of Layer(m) :    57.32/   57.36
Hole:  53A  Depth to Top of Core(m)      :    53.30
Core:   3   Depth Top/Bottom Interval(mm): 1020/1060
Sect:  3
 
Visual Text Description:
 ASH;C 5Y2/1-BLACK;H SOFT;Z 00000000;Z 00000000 
 
 
Leg :  6    Depth Top/Bottom of Layer(m) :    57.36/   57.80
Hole:  53A  Depth to Top of Core(m)      :    53.30
Core:   3   Depth Top/Bottom Interval(mm): 1060/1500
Sect:  3
 
Visual Text Description:
 ASHY CLAY WITH NANNOS;C 5Y4/1-DARK GREY,5Y5.5/1-GREY;S MOTTLES;M GLASS,
CLAY,NANNOFOSSILS;O COMPACTAND DRY;H SLIGHTLY LITHIFIED;Z 00000000;Z 
00000000 
 
 
Leg :  6    Depth Top/Bottom of Layer(m) :    57.80/   58.38
Hole:  53A  Depth to Top of Core(m)      :    53.30
Core:   3   Depth Top/Bottom Interval(mm):   00/ 580
Sect:  4
 
Visual Text Description:
 CLAY WITH ASH;C 5Y5/1-GREY,5Y2/1-BLACK;S MOTTLESAND STREAKS OF BLACK;U 
PEBBLES OF PUMICE;O COMPACTAND DRY;H SLIGHTLY LITHIFIED;Z 00000000;Z 
00000000 
 
 
Leg :  6    Depth Top/Bottom of Layer(m) :    58.38/   58.43
Hole:  53A  Depth to Top of Core(m)      :    53.30
Core:   3   Depth Top/Bottom Interval(mm):  580/ 630
Sect:  4
 
Visual Text Description:
 VOLCANIC CLAY;C 5Y2/1-BLACK,5Y5/1-GREY;S STREAKSOF GREY;O POSSIBLE 
DEFORMATION BY DRILLING;O COMPACTAND DRY;H SLIGHTLY LITHIFIED;Z 00000000;Z 
00000000 
 
 
Leg :  6    Depth Top/Bottom of Layer(m) :    58.43/   58.80
Hole:  53A  Depth to Top of Core(m)      :    53.30
Core:   3   Depth Top/Bottom Interval(mm):  630/1000
Sect:  4
 
Visual Text Description:
 MUDDY VOLCANIC SILT;C 5Y5/1-GREY;M GLASS,CLAY;OCOMPACT AND DRY,AT 70CM 
FRAGMENT OF BLACK VOLCANICCLAY;H SLIGHTLY LITHIFIED;Z 00000000;Z 00000000 
 
 
Leg :  6    Depth Top/Bottom of Layer(m) :    58.80/   58.90
Hole:  53A  Depth to Top of Core(m)      :    53.30
Core:   3   Depth Top/Bottom Interval(mm): 1000/1100
Sect:  4
 
Visual Text Description:
 VOLCANIC SILT;C 5Y4/1-DARK GREY;O SEDIMENT IS COMPACT AND DRY;H SLIGHTLY 
LITHIFIED;Z 00000000;Z 00000000 
 
 
Leg :  6    Depth Top/Bottom of Layer(m) :    58.90/   59.30
Hole:  53A  Depth to Top of Core(m)      :    53.30
Core:   3   Depth Top/Bottom Interval(mm): 1100/1500
Sect:  4
 
Visual Text Description:
 VOLCANIC SILT;C 5Y3/2-DARK OLIVE GREY;M GLASS,CLAY,NANNOFOSSILS;O 
SEDIMENT IS DRY AND COMPACT;H SLIGHTLY LITHIFIED;Z 00000000;Z 00000000 
 
 
Leg :  6    Depth Top/Bottom of Layer(m) :    59.30/   59.80
Hole:  53A  Depth to Top of Core(m)      :    53.30
Core:   3   Depth Top/Bottom Interval(mm):   00/ 500
Sect:  5
 
Visual Text Description:
 MUDDY VOLCANIC SILT;C 5Y5/1-GREY;S OCCASIONAL MOTTLES;U AT 7CM IS A LAYER 
OF 2.5YR6/6-LIGHT RED PUMICE,AT 43CM IS A PIECE OF BLACK VOLCANIC SAND;M 
GLASS,CLAY,NANNOFOSSILS;H POORLY LITHIFIED;Z 00000000;Z 00000000 
 
 
Leg :  6    Depth Top/Bottom of Layer(m) :    59.80/   59.85
Hole:  53A  Depth to Top of Core(m)      :    53.30
Core:   3   Depth Top/Bottom Interval(mm):  500/ 550
Sect:  5
 
Visual Text Description:
 VOLCANIC SAND;C 5Y2/1-BLACK;M GLASS,PLAGIOCLASE,HORNBLENDE;O CONTACT 
BETWEEN SAND AND LAYERS ABOVE AND BELOW POORLY DEFINED;H POORLY LITHIFIED;
Z 00000000;Z 00000000 
 
 
Leg :  6    Depth Top/Bottom of Layer(m) :    59.85/   60.15
Hole:  53A  Depth to Top of Core(m)      :    53.30
Core:   3   Depth Top/Bottom Interval(mm):  550/ 850
Sect:  5
 
Visual Text Description:
 MUDDY VOLCANIC SILT;C 5Y5/1-GREY;S OCCASIONALMOTTLES OF LIGHT GREY SILT;M 
GLASS,CLAY,NANNOFOSSILS;H POORLY LITHIFIED;Z 00000000;Z 00000000 
 
 
Leg :  6    Depth Top/Bottom of Layer(m) :    60.15/   60.53
Hole:  53A  Depth to Top of Core(m)      :    53.30
Core:   3   Depth Top/Bottom Interval(mm):  850/1230
Sect:  5
 
Visual Text Description:
 VOLCANIC SILT;C 5Y5/1-GREY,5Y7/1-LIGHT GREY,5Y3/1-VERY DARK GREY;S 
INTERLAYERED WITH RESPECT TO COLOR,1 THIN LAYERS OF VOLCANIC SAND;H POORLY 
LITHIFIED;Z 00000000;Z 00000000 
 
 
Leg :  6    Depth Top/Bottom of Layer(m) :    60.53/   60.59
Hole:  53A  Depth to Top of Core(m)      :    53.30
Core:   3   Depth Top/Bottom Interval(mm): 1230/1290
Sect:  5
 
Visual Text Description:
 VOLCANIC SAND;C 5Y2/1-BLACK;M GLASS,PLAGIOCLASE,HORNBLENDE;H POORLY 
LITHIFIED;Z 00000000;Z 33215000.3700 
 
 
Leg :  6    Depth Top/Bottom of Layer(m) :    60.59/   60.67
Hole:  53A  Depth to Top of Core(m)      :    53.30
Core:   3   Depth Top/Bottom Interval(mm): 1290/1370
Sect:  5
 
Visual Text Description:
 MUDDY VOLCANIC SILT;C 5Y5/1-GREY;M GLASS,CLAY,NANNOFISSILS;H POORLY 
LITHIFIED;Z 00000000;Z 00000000 
 
 
Leg :  6    Depth Top/Bottom of Layer(m) :    60.67/   60.75
Hole:  53A  Depth to Top of Core(m)      :    53.30
Core:   3   Depth Top/Bottom Interval(mm): 1370/1450
Sect:  5
 
Visual Text Description:
 VOLCANIC SILT;C 5Y5/1-GREY,5Y7/1-LIGHT GREY,5Y3/1-VERY DARK GREY;S COLOR 
BANDED;U OCCASIONAL LAYERSOF BLACK SAND;H POORLY LITHIFIED;Z 00000000;Z 
33215000.3700 
 
 
Leg :  6    Depth Top/Bottom of Layer(m) :    60.75/   60.80
Hole:  53A  Depth to Top of Core(m)      :    53.30
Core:   3   Depth Top/Bottom Interval(mm): 1450/1500
Sect:  5
 
Visual Text Description:
 MUDDY VOLCANIC SILT;C 5Y5/1-GREY;M GLASS,CLAY,NANNOFOSSILS;H POORLY 
LITHIFIED;Z 00000000;Z 33215000.3700 
 
 
    

Introduction


Cite as: Deep Sea Drilling Project (1989): Archive of Core and Site/Hole Data and Photographs from the Deep Sea Drilling Project (DSDP). National Geophysical Data Center, NOAA. doi:10.7289/V54M92G2 [access date]

These Web pages are from the Core Data from the Deep Sea Drilling Project Legs 1-96 CD-ROM produced in 1989 and modified in 2000 by the U.S. Department of Commerce, National Oceanic and Atmospheric Administration, National Environmental Satellite, Data, and Information Service, National Geophysical Data Center (now part of the National Centers for Environmental Information), and collocated World Data Center for Marine Geology and Geophysics, Boulder (now part of the World Data Service for Geophysics). Data were compiled in cooperation with the U.S. Science Support Program, of the Joint Oceanographic Institutions, Inc. (now the Consortium for Ocean Leadership), and the U.S. National Science Foundation.

Please see NOAA's privacy and disclaimer information. Send questions or comments to mgg.info@noaa.gov.

Department of Commerce > NOAA > NESDIS > NCEI > doi:10.7289/V54M92G2