Sedimentology of the Bajocian Fuglunda Member at Eriksdal, Scania, southern Sweden
(1996) In Dissertations in Geology at Lund UniversityDepartment of Geology
- Abstract
- The Bajocian Fuglunda Member of Eriksdal consists mostly of sand, silt and coal arranged
in cycles (2-4m). Each cycle generally starts with organic-rich heteroliths at the base and further
up ripple-drift cross laminated and horizontally laminated fine sand follow. The coal seams at
the top of the cycles are of minor thickness. Signs of soil formation occur as coalified rootlets
reaching down from the seams, and as soil horizons with upper erosive boundaries. Evidence
of lacustrine as well as brackish and marine conditions are represented in the strata. The coal
seams contain a flora of fresh water plants, whereas pyrite nodules, Diplocraterion and
calcareous foraminifera are characteristics of brackish or marine conditions. The... (More) - The Bajocian Fuglunda Member of Eriksdal consists mostly of sand, silt and coal arranged
in cycles (2-4m). Each cycle generally starts with organic-rich heteroliths at the base and further
up ripple-drift cross laminated and horizontally laminated fine sand follow. The coal seams at
the top of the cycles are of minor thickness. Signs of soil formation occur as coalified rootlets
reaching down from the seams, and as soil horizons with upper erosive boundaries. Evidence
of lacustrine as well as brackish and marine conditions are represented in the strata. The coal
seams contain a flora of fresh water plants, whereas pyrite nodules, Diplocraterion and
calcareous foraminifera are characteristics of brackish or marine conditions. The different
sediments were divided into two populations interpreted as originating from mainly river
generated and beach foreshore processes. The cyclic arrangement of the present sediments and
their characteristics point at a lower delta plain environment, where sediments were deposited
from the distributaries into the interdistributary bays. Fluctuations in sea-level, possibly due to
variations in the campaction of underlying sediments, periodically exposed the bays to basinal processes. (Less)
Please use this url to cite or link to this publication:
http://lup.lub.lu.se/student-papers/record/2369915
- author
- Olsson, Ingela
- supervisor
-
- Kent Larsson LU
- organization
- year
- 1996
- type
- H1 - Master's Degree (One Year)
- subject
- keywords
- Bajocian, Fuglunda Member, coal, cyclicity, grain size analysis, river processes, beach foreshore processes, interdistributary bays, lower deltaic plain
- publication/series
- Dissertations in Geology at Lund University
- report number
- 68
- language
- English
- id
- 2369915
- date added to LUP
- 2012-03-09 10:20:43
- date last changed
- 2012-10-23 10:50:46
@misc{2369915, abstract = {{The Bajocian Fuglunda Member of Eriksdal consists mostly of sand, silt and coal arranged in cycles (2-4m). Each cycle generally starts with organic-rich heteroliths at the base and further up ripple-drift cross laminated and horizontally laminated fine sand follow. The coal seams at the top of the cycles are of minor thickness. Signs of soil formation occur as coalified rootlets reaching down from the seams, and as soil horizons with upper erosive boundaries. Evidence of lacustrine as well as brackish and marine conditions are represented in the strata. The coal seams contain a flora of fresh water plants, whereas pyrite nodules, Diplocraterion and calcareous foraminifera are characteristics of brackish or marine conditions. The different sediments were divided into two populations interpreted as originating from mainly river generated and beach foreshore processes. The cyclic arrangement of the present sediments and their characteristics point at a lower delta plain environment, where sediments were deposited from the distributaries into the interdistributary bays. Fluctuations in sea-level, possibly due to variations in the campaction of underlying sediments, periodically exposed the bays to basinal processes.}}, author = {{Olsson, Ingela}}, language = {{eng}}, note = {{Student Paper}}, series = {{Dissertations in Geology at Lund University}}, title = {{Sedimentology of the Bajocian Fuglunda Member at Eriksdal, Scania, southern Sweden}}, year = {{1996}}, }