Exploring Handaxe Function at Shishan Marsh – 1: Combining Qualitative and Quantitative Approaches Using the Edge Damage Distribution Method
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Exploring Handaxe Function at Shishan Marsh – 1: Combining Qualitative and Quantitative Approaches Using the Edge Damage Distribution Method by John K. Murray B.A., Stony Brook University, 2014 Graduate Certificate, Johns Hopkins University, 2015 Graduate Certificate, University of Victoria, 2017 A Thesis Submitted in Partial Fulfillment of the Requirements for the Degree of MASTER OF ARTS in the Department of Anthropology ©John K. Murray, 2017 University of Victoria All rights reserved. This thesis may not be reproduced in whole or in part, by photocopy or other means, without permission of the author. Exploring Handaxe Function at Shishan Marsh – 1: Combining Qualitative and Quantitative Approaches Using the Edge Damage Distribution Method by John K. Murray B.A., Stony Brook University, 2014 Graduate Certificate, Johns Hopkins University, 2015 Graduate Certificate, University of Victoria, 2017 Supervisory Committee Dr. April Nowell, Supervisor Department of Anthropology Dr. Yin-Man Lam, Member Department of Anthropology Daniel Stueber, Outside Member Primitive Skills Practitioner ii ABSTRACT Handaxes are some of the longest lasting and most iconic stone tools throughout human evolution. Appearing in the early Pleistocene, these bifacially flaked tools persisted around one and a half million years and span across all of the Old World, from Africa to eastern Asia. Despite their ubiquitous nature, relatively little is known about their function. Handaxes are often speculated to be multi-functional tools which were selected for due to their large cutting edge; however, only a handful of use-wear studies have attempted to elucidate their use in the archaeological record. The lack of experimental use-wear studies surrounding handaxe function is due to preservation issues and the fact that manufacturing and curating handaxes compounds the ambiguity of microwear signatures. The methodology undertaken in this research provides a pathway to overcoming these obstacles through experimental archaeology in conjunction with low powered microscopy, image-based GIS, and statistical hypothesis testing. In particular, this thesis investigates handaxe function at an assemblage scale (n = 56) in a late Lower Paleolithic to Middle Paleolithic archaeological site called Shishan Marsh – 1 (SM-1) in al-Azraq, Jordan. Experimental handaxes (n = 22) were replicated and used in various activities such as butchery, plant processing, woodworking, shellfish processing, and digging. The results of this research corroborates the idea of handaxes being used as multifunctional tools. These results have implications for handaxe function, hominin tool use in a desert refugia, and provides a new pathway to investigate inter-site variability in handaxe use. iii Table of Contents Supervisory Committee…………………………………………………………………………..ii Abstract…………………………………………………………………………………………..iii Table of Contents…………………………………………………………………………………iv List of Tables……………………………………………………………………………………vii List of Figures…………………………………………………………………………………...viii Acknowledgements……………………………………………………………………………….x Chapter 1: Introduction………….………….………….………….………….………….………1 Research Statement………….………….………….………….………….……………...1 Research Goals and Questions………….………….………….………….……………...3 Thesis Outline………….………….………….………….………….………….………..4 Chapter 2: Investigating Function in Lithic Technology……………………………………...…6 History of Use-Wear Analysis in Lithic Technology………….………….……………..6 Low-Powered Approach………….………….………….………….……………6 High-Powered Approach………….………….………….………….………….. 7 Scanning Electron Microscope (SEM) ………….………….………….………..9 Quantification of Use-Wear…..………….………….………….………….…………… 9 Surface Metrology………….………….………….………….……………........12 Laser Profilometry………….………….………….………….………….……...13 Interferometry………….………….………….………….………….……….….13 Atomic Force Microscopy………….………….………….………….…………13 Laser-Scanning Confocal Microscopy (LSCM) ………….…………………….14 Focus Variation Microscopy………….………….………….………….…….…15 Counterparts to Microwear………….………….………….………….………….……..15 Macrofractures………….………….………….………….………….………….15 Residue Analysis………….………….………….………….………….……….16 Approaches to Use-Wear Analysis: A Question of Scale………….………….………...17 Post-Depositional Edge Modification………….………….………….………….……...19 Blind Testing………….………….………….………….………….………….………...20 Summary………….………….………….………….………….………….………….…22 Chapter 3: Contextualizing the Acheulean at Shishan Marsh – 1………….……...….………....23 Introduction………….………….………….………….………….……………………..23 The Acheulean in a Global Context………….……………..…………………...23 The Handaxe Dilemma………….………….………….………………………...25 Functional Studies of Handaxes………….………….………….………….……………27 Microwear Studies………….………….………….………….………….………29 Functional Edges………….………….………….………….………….………..29 Factors Affecting Handaxe Use and Effectiveness………….………….…….....30 Current Approach………….………….………….………….…………………..31 The Acheulean of the Levant………….………….………….………….……………….31 The Acheulean of Jordan………….………….………….………….………….………..34 Southern Mountain Desert………….………….………….………….………….36 iv Western Highlands………….………….………….………….………….………36 Central Plateau………………. ……… ………….………….………….…….....37 Shishan Marsh – 1 (SM-1).………….………….………….….……………........41 Summary…………………………………………………………………………………45 Chapter 4: Materials and Methods……………………………………………………………….47 Materials…………………………………………………………………………………47 Excavation……………………………………………………………………….48 Micromorphology………………………………………………………………..48 Collection of Chert………………………………………………………………49 Flintknapping Replications………………………………………………………50 Prehistoric Assemblage………………………………………………………….54 Methods………………………………………………………………………………….55 Pre-experimental Procedure……………………………………………………..55 Experimental Protocol…………………………………………………………...57 Longitudinal Activities…………………………………………………………..60 Percussive Activities……………………………………………………………..61 Transverse Activities…………………………………………………………….61 Butchery………………………………………………………………………….61 Post-depositional Experiments…………………………………………………..62 Edge Damage Distribution Method……………………………………………...63 Statistical Procedures…………………………………………………………………….68 Paired T-test……………………………………………………………………...68 Wilcoxon Signed-Rank test……………………………………………………...68 Kolmogrov-Smirnov (KS) test…………………………………………………..69 Confounding Factors…………………………………………………………………….70 Summary………………………………………………………………………………...70 Chapter 5: Results……………………………………………………………………………….71 Introduction……………………………………………………………………………...71 Comparative Summary of Lithic Assemblages….………………………………………71 Summary Statistics………………………………………………………………71 Shape…………………………………………………………………………….73 Results of the Experimental Use-Wear Analysis………………………………………..75 Butchery…………………………………………………………………………75 Longitudinal Actions…………………………………………………………….76 Percussive Actions………………………………………………………………77 Transverse Actions………………………………………………………………79 Post-depositional Experiments…………………………………………………..80 Results of the Prehistoric Use-Wear Analysis…………………………………………...81 SM1-3547………………………………………………………………………..81 SM1-3805………………………………………………………………………..82 SM1-4751………………………………………………………………………..84 SM1-4826………………………………………………………………………..85 Results of the Experimental Edge Damage Distribution Analysis………………………87 v Question 1: Is there a significant difference in edge damage distribution between activity groups (i.e., are they distinguishable from one another)?….…...87 Question 2: What is the overall distribution of edge damage in the experimental dataset?………… ………………………………………………………..91 Question 3: Does grip influence edge damage distribution?…………………….92 Results of the Prehistoric Edge Damage Distribution Analysis………………………....94 Question 4: What is the overall distribution of edge damage at SM-1?................96 Question 5: Does the distribution of edge damage at SM-1 differ from a random distribution? ……………………………………………………………100 Question 6: Does tool use change over time? …………………………………101 Question 7: Do the experimental distributions reflect SM-1 handaxe use?........106 Question 8: Do the experimental distributions reflect SM-1 handaxe use within layers? ……………………………………………………………….…107 Overarching Research Question: How were hominins using handaxes at SM-1?...........109 Summary………………………………………………………………………………..110 Chapter 6: Discussion and Conclusion…………………………………………………………112 Introduction……………………………………………………………………………..112 Additions to Use-Wear Methodology…………………………………………………..113 Benefits of Humanistic Experimental Protocols………………………………………..119 A Multi-Stranded Approach……………………………………………………………122 Interpreting Prehistory………………………………………………………………….124 Tip Shape and Handaxe Function………………………………………………………126 Handaxe Use and Hominin Behavior at SM-1…………………………………………127 Conclusions…………………………………………………………………………….130 Bibliography……………………………………………………………………………………132 Appendix I: Directions for Blind Testing in Lithic Technology……………………………….147 Appendix II: Additional Details on Experimental Protocol……………………………………158 vi List of Tables Table 3.1: Comparison of Mean Length, Width, and Thickness of Azraq Assemblages……….45 Table 4.1: Measurements of Handaxes in the Experimental Assemblage………………………53 Table 4.2: Measurements of Handaxes in the SM-1 Assemblage……………………………….54 Table 4.3: Summary of Activities for Experimental Protocol…………………………………...58 Table 4.4: Summary of Experimental Activities with Handaxes………………………………..60 Table 5.1: KS Test Results Comparing Analogous Edges of Activity Groups………………….90 Table 5.2: KS Test Results Comparing Grips……………………………………………………94 Table 5.3: Average Edge Length and Damage at SM-1…………………………………………94 Table 5.4: Total Edge Damage Occurrences at SM-1…………………………………………...95 Table 5.5: Paired t-Test and Wilcoxon Signed-Rank