Core Data from the Deep Sea Drilling Project

Leg : 12    Top/Bottom Interval(mm):  170/ 190  Describer: Aumento, F.
Hole: 112   Top of Core Depth(m)   :   661.00   Rock Type: IGNEOUS
Core:  17   Sample Midpoint(m)     :   661.18   Sect/Pc #:  1/

ROCK = PLAG-CPX-OL PHYRIC BASALT
       ALTERED,ENCODED FROM IR;
       Texture: VARIOLITIC TO MICROLITIC, PORPHYRITIC
       FINE-GRAINED GROUNDMASS*

Phenocrysts- PLAGIOCLASE
             Size(mm):       TO 3  Morphology: STRONGLY ZONED
             APPROX COMP AN70,CALCIC CORES SOMETIMES
             SAUSSURITIZED;

             PLAGIOCLASE
             Size(mm): TO 1.0X0.2
             MORE SODIC,FRESH,OFTEN FORM GLOMEROCRYSTS WITH
             CPX,APPROX COMP AN60*

             CLINOPYROXENE

             OLIVINE

Groundmass - PLAGIOCLASE
             Morphology: LATHS

             CLINOPYROXENE
             Morphology: ANHEDRAL

             OLIVINE
             ALTERED;

             FERROUS OXIDE
             Morphology: GRAINS

Alteration - CHLORITE
             Location: TRAVERSE SPEC
             GREEN, FIBROUS, RADIATING*

Vesicles   -
             Filling: CHLORITE
             GREEN OR BROWN*




Leg : 12    Top/Bottom Interval(mm):  190/ 240  Describer: Aumento, F.
Hole: 112   Top of Core Depth(m)   :   661.00   Rock Type: IGNEOUS
Core:  17   Sample Midpoint(m)     :   661.22   Sect/Pc #:  1/

ROCK = PLAG-CPX-OL PHYRIC BASALT
       SAME AS (112-17-1,17-19)*




Leg : 12    Top/Bottom Interval(mm):  190/ 240  Describer: Ryall, P.
Hole: 112   Top of Core Depth(m)   :   661.00   Rock Type: IGNEOUS
Core:  17   Sample Midpoint(m)     :   661.22   Sect/Pc #:  1/

ROCK = PLAG-CPX-OL PHYRIC BASALT
       ENCODED FROM IR*

Groundmass - TITANOMAGNETITE
             Morphology: SKELETAL
             ABUNDANT SMALL BROWN, CLASS 1 DEUTERIC STATE;

             MAGNETITE
             Size(mm):       0.01

             HEMATITE
             LARGER, UNCERTAIN ORIGIN*




Leg : 12    Top/Bottom Interval(mm):  940/ 950  Describer: Aumento, F.
Hole: 112   Top of Core Depth(m)   :   661.00   Rock Type: IGNEOUS
Core:  17   Sample Midpoint(m)     :   661.95   Sect/Pc #:  1/

ROCK = PLAG-CPX-OL PHYRIC BASALT
       SAME AS (112-17-1,17-19)*




Leg : 12    Top/Bottom Interval(mm):  940/ 950  Describer: Ryall, P.
Hole: 112   Top of Core Depth(m)   :   661.00   Rock Type: IGNEOUS
Core:  17   Sample Midpoint(m)     :   661.95   Sect/Pc #:  1/

ROCK = PLAG-CPX-OL PHYRIC BASALT
       SAME AS (112-17-1,19-24) BUT WITH LARGE
       HEMATITE-FILLED VESICLES AND VEINS*

Vesicles   -
             Filling: HEMATITE




Leg : 12    Top/Bottom Interval(mm): 1090/1100  Describer: Ryall, P.
Hole: 112   Top of Core Depth(m)   :   661.00   Rock Type: IGNEOUS
Core:  17   Sample Midpoint(m)     :   662.10   Sect/Pc #:  1/

ROCK = PLAG-CPX-OL PHYRIC BASALT
       ENCODED FROM THE IR*

Groundmass - TITANOMAGNETITE
             Morphology: SKELETAL
             SMALL,CLASS 1,USUALLY VERY SMALL BUT A FEW
             GRAINS TO 0.05 MM*

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.

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