Location: Holzmaden and Dotternhausen,
Age: Toarcian, Lower Jurassic
Allochthonous - transported to the site of deposition
absence of oxygen
Aragonite- type of calcium
a group of many islands
plane- horizontal plane in which a sediment is laid down
Benthic - living at (epibenthic) or
under (endobenthic) the sediment- water interface
disruption of sediment resulting from organic activity.
a mass formed by concentration of certain constituents of a sediment during
often form around a nucleus.
Lagerstätte- a deposit with exceptional preservation (Concentration
Lagerstätte = exceptional abundance)
process of rock formation
and strike- dip is the angle horizontal to the bedding plane, measured
perpendicular to the strike; the direction in which a horizontal line may
be drawn on a plane.
naturally occuring compound of hydrogen and carbon of organic origin
solid organic material, major component of oil shale
layers of sediment 1cm thick or less.
formation of a massive, solid rock from a loose sediment
the proteinous outer layer of a shell (e.g. in ammonites).
pseudoplanktonic - drifting mode of
life via external means i.e. attachment to floating log
Redox boundary - boundary between oxic
and anoxic conditions
tube linking each of the chambers of a cephalopod to the next.
an underlying substance and its surface
stratigraphic stage name