-
Tuscan alabaster occurs in
nodular m****es
embedded in limestone,
interstratified with
marls of
Miocene and
Pliocene age. The
mineral is
worked largely...
- The top of the 11,000 year-old ash fall
deposits interstratified with
paleosols overlying a
channelized debris flow and a
sequence of wet surges...
-
Gravina B,
Mellars P,
Ramsey CB (November 2005). "Radiocarbon
dating of
interstratified Neanderthal and
early modern human occupations at the Chatelperronian...
-
Limestones are
generally horizontal, but are in
places much
disturbed when
interstratified with
Mekelle Dolerite. The
fossils are all
characteristic Oolite forms...
-
identified in
Isinuka clay
namely quartz (SiO2), mica,
calcite (CaCO3),
interstratified illite (K,H3O)(Al,Mg,Fe)2(Si,Al)4O10[(OH)2ยท(H2O)],
aragonite (CaCO3)...
- quartz-rich of
interlayered red
argillite and
siltite characterized by
mudcracks and
interstratified with
abundant white,
crossbedded quartzite and sandstone....
- the
Valentia Slate Formation and the U-Pb
radioisotopic dating of an
interstratified air-fall tuff bed to ca. 385 Ma,
making these tetrapod trackways some...
-
chiefly of fine-grained gray and bluish-black
slates and gray arkoses.
Interstratified with these, but in far less amount, are
quartzose beds and occasional...
-
rocks (claystones, shales, siltstones, sandstones, conglomerates)
interstratified with the beds of coal. In most places, the coal
measures are underlain...
- side of the bay, a
thick series of
melaphyre lava
flows and
tuffs are
interstratified with
limestone of
Upper Devonian age. Baker,
Marcus (1902). Geographic...
