Cambrian and Early Ordovician Stratigraphy and Paleontology of the Basin and Range Province, Western United States: Las Vegas, Nevada to Salt Lake City, Utah, July 1-7, 1989

Title Page......Page 1
Copyright......Page 2
Contents......Page 4
Mailing Addresses Of Authors......Page 6
CHAPTER 1 
INTRODUCTION AND BACKGROUND FOR FIELD TRIP T125......Page 7
INTRODUCTION......Page 12
GEOLOGIC HISTORY......Page 13
INTRODUCTION......Page 20
STRATIGRAPHY......Page 23
PALEONTOLOGY......Page 28
GEOLOGIC FEATURES ALONG ROUTE FOR DAY 1......Page 30
REGIONAL RELATIONS......Page 34
TYBO CANYON, HOT CREEK RANGE......Page 35
LANGE RANCH EUSTATIC EVENT IN THE TYBO CANYON SECTION......Page 41
STOP 23 OPTIONAL: CURRANT CANYON, HORSE MOUNTAINS-WHITE PINE RANGE: OVERVIEW OF LOWER PALEOZOICSTRATIGRAPHIC SECTION......Page 42
STOP 3.1: CHRISTMAS TREE CANYON......Page 43
STOP 32: SAWMILL CANYON......Page 45
LANGE RANCH EUSTATIC EVENT......Page 49
Acknowledgements......Page 50
Stop 4.1: Hellnmaria Member of Notch Peak Formation......Page 51
Stop 42: Steamboat Pass and General Orientation to the Southern House Range-Ibex Area.......Page 52
TRILOBITES......Page 53
CONODONTS......Page 58
EUSTATIC EVENTS AT THE LAVA DAM FIVE SECTION......Page 61
GEOCHEMICAL ANOMALIES AND THE LREE......Page 63
STOP 4.4 OPTIONAL: LOWER ORDOVICIAN FILLMORE FORMATION, SKULL ROCK PASS......Page 64
LITHOLOGY AND DEPOSITIONAL HISTORY......Page 65
BIOTA......Page 68
DAY 5: CAMBRIAN STRATIGRAPHY AND PALEONTOLOGY OF THE CENTRAL HOUSE RANGE......Page 71
DAY 6: MIDDLE CAMBRIAN STRATIGRAPHY AND PALEONTOLOGY OF THE DRUM MOUNTAINS......Page 75
CLASSIFICATION OF ICHNOFABRIC......Page 79
MEASURING ICHNOFABRIC IN THE FIELD......Page 80
CONCLUSIONS......Page 82
REFERENCES CITED......Page 83
REFERENCES CITED......Page 93