Page 257 - Carbonate Platforms Facies, Sequences, and Evolution

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LEONDIAN
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PENNSYLVAI'H,
!.ATE PALEOZOIC -
RADla-frIC DATE
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PERMIAN,
!.AR1IDE 11-IUST FRONT
Lampazos-Picacho highs.
OVfCROPS AND •;.:LS
t1-ITHON TREJJD
TRIAS,
PRE.CARIAl'l (GRENVIllE) GNEISS
PERI'O-TRIAS to LLo\5 GR<\NITOIDS
EARLY MESOZOIC BASIN
LIASSIC
MID to 1...\TE PALEOZOIC SD-IISTS Al.'lD CLASTICS
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and metasedimentary basement and their radiometric dates.
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(1) Burro-Peyotes high; (2) Sabinas Basin; (3) Coahuila block; (4) Tamaulipas arch; (5) Magiscatzin Basin; and (6)
Fig. 2. Late Palaeozoic-early Mesozoic tectonic framework of northern Mexico showing areas of pre-late Jurassic granitic