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Introduction 1 Purpose 1 Stratigraphy and sedimentology 1 Study area 3 Data 4 Statistical analysis of framework data 4 R-mode analysis 6 Q-mode analysis 6 Petrofacies I 6 Petrofacies II 8 Petrofacies III 8 Petrofacies IV 9 Petrofacies V 10 Petrofacies VI 10 Factor-score maps and petrofacies analysis 11 Discussion 13 QFL plots 13 Paleocurrent data 15 Lower part of Blackleaf Formation and tectonic quiescence 15 Upper part of Blackleaf and lower part of Frontier Formations and mid-Cretaceous tectonism 19 Summary 19 References cited 19 Code, lithofacies, location, and source for sections and sample localities 21 IV Contents

Introduction Coincident anomalies 2 Associated variables and 1 accard coefficients 5 Simulations and anomalous sections of the traverse 6 Randomization tests 7 Two-dimensional case 7 Three-dimensional case 9 Summary 12 Acknowledgments 12 References cited 12 FIGURES 1. Map of hypothetical study area 1 Contents iii