By the same authors

From the same journal

DISTRIBUTIONS OF PIGMENTS IN THE ORGANIC-MATTER OF MARLS FROM THE VENA DEL GESSO EVAPORITIC SEQUENCE

Research output: Contribution to journalArticle

Author(s)

Department/unit(s)

Publication details

JournalOrganic Geochemistry
DatePublished - Jun 1995
Issue number6
Volume23
Number of pages13
Pages (from-to)527-539
Original languageEnglish

Abstract

The porphyrins and carotenoids of marl horizons within the Messinian evaporitic cycles of the Vena del Gesso basin show variations in abundance and composition throughout a sequence of ten cycles. Significant variations are also apparent within individual marl horizons. The differences. in pigment distribution reflect significant changes in the environmental conditions during sediment deposition. The presence of significant amounts of isorenieratene and co-occurrence of an alkyl porphyrin with a C-34 skeleton provide evidence for anoxic conditions extending into the photic zone of the palaeo-water column. Variations in the free pigment contents of the marls reflect a regressive trend both during deposition of an individual marl, and over the entire sequence.

    Research areas

  • ALKYL PORPHYRINS, ISORENIERATENE, WATER COLUMN ANOXIA, PALEOENVIRONMENTAL ASSESSMENT, EVAPORITES, MARLS, LIQUID-CHROMATOGRAPHIC ANALYSIS, SULFUR-RICH GEOMACROMOLECULES, FREE-BASE PORPHYRINS, BLACK-SEA, LIPOPHILIC PIGMENTS, OIL-SHALE, CHLOROPHYLL, BACTERIOCHLOROPHYLLS, RECONSTRUCTION, ORIGINS

Discover related content

Find related publications, people, projects, datasets and more using interactive charts.

View graph of relations