Interstitial water chemistry at DSDP Leg 74 Holes
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| Format: | Dataset Open Access |
| Sprache: | en |
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PANGAEA
1984
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| _version_ | 1867167670005137408 |
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| author | Gieskes, Joris M Johnston, Kirk Boehm, Marcus |
| author_facet | Gieskes, Joris M Johnston, Kirk Boehm, Marcus |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Interstitial water studies from sites drilled during a transect of the Walvis Ridge indicate that concentration increases in calcium and decreases in magnesium toward and into the basement. These trends can be understood principally in terms of reactions taking place in Layer 2 of the oceanic crust. At Site 525, however, some removal of magnesium occurs within the sediment column. Concentration maxima of dissolved strontium clearly indicate that carbonate recrystallization occurs throughout the carbonate sediments, and studies of the Sr/Ca ratio in carbonates indicate that in chalks and limestones recrystallization is essentially complete. Predictions of dissolved strontium maxima generally fail; this can be understood as removal of strontium in basal sediments and/or basalts. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_810542 |
| institution | PANGAEA |
| language | en |
| publishDate | 1984 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Interstitial water chemistry at DSDP Leg 74 Holes Gieskes, Joris M Johnston, Kirk Boehm, Marcus 74-525; 74-525_Site; 74-525A; 74-525B; 74-526_Site; 74-526A; 74-527; 74-527_Site; 74-528; 74-528_Site; 74-528A; 74-529; COMPCORE; Composite Core; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Leg74; South Atlantic/CREST; South Atlantic/RIDGE; South Atlantic/SLOPE; South Atlantic Ocean Interstitial water studies from sites drilled during a transect of the Walvis Ridge indicate that concentration increases in calcium and decreases in magnesium toward and into the basement. These trends can be understood principally in terms of reactions taking place in Layer 2 of the oceanic crust. At Site 525, however, some removal of magnesium occurs within the sediment column. Concentration maxima of dissolved strontium clearly indicate that carbonate recrystallization occurs throughout the carbonate sediments, and studies of the Sr/Ca ratio in carbonates indicate that in chalks and limestones recrystallization is essentially complete. Predictions of dissolved strontium maxima generally fail; this can be understood as removal of strontium in basal sediments and/or basalts. |
| title | Interstitial water chemistry at DSDP Leg 74 Holes |
| topic | 74-525; 74-525_Site; 74-525A; 74-525B; 74-526_Site; 74-526A; 74-527; 74-527_Site; 74-528; 74-528_Site; 74-528A; 74-529; COMPCORE; Composite Core; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Leg74; South Atlantic/CREST; South Atlantic/RIDGE; South Atlantic/SLOPE; South Atlantic Ocean |
| url | https://doi.org/10.1594/PANGAEA.810542 |