Archaeology Study Guide

📖 Core Concepts Archaeology – scientific study of past human activity through material culture (artifacts, architecture, ecofacts, sites, landscapes). Material culture – physical remains that humans created or modified. Prehistory – >99 % of human past before writing; studied solely through archaeology. Stratigraphy – layering of deposits; older layers lie beneath younger ones; basis for relative dating. Typology – systematic classification of artifacts by form, function, or style. Processual vs. Post‑processual – Processual: hypothesis‑driven, scientific method; Post‑processual: reflexive, symbolic, agency‑focused. Cultural Resources Management (CRM) – identification, preservation, and mitigation of archaeological sites threatened by development. Legal frameworks (U.S.) – NHPA (1966) requires impact assessment; NAGPRA (1990) protects Native American remains and cultural items. 📌 Must Remember Temporal range: From Lomekwi stone tools (3.3 Ma) to modern decades. Key dating milestones: Oldowan tools (2.5 Ma); pottery sequences (Petrie, Egypt). Major method pioneers: Stratigraphy: Smith, Hutton, Lyell → 19th c. Typology & systematic collection: Augustus Pitt Rivers (1880s). Pottery dating: William Flinders Petrie. Grid excavation: Sir Mortimer Wheeler → refined by Kathleen Kenyon. Processual archaeology founders: Lewis Binford, Kent Flannery (1960s). Post‑processual founders: Michael Shanks, Christopher Tilley, Daniel Miller, Ian Hodder (1980s). Remote sensing basics: Passive – satellite imagery, natural radiation. Active – Lidar (laser pulses, distance = speed × time/2). Geophysical tools: Magnetometer (detects magnetic anomalies), resistivity meter (soil conductivity contrasts). Excavation principle: Record provenance (horizontal + vertical) → maintain context. Post‑excavation analyses: Radiocarbon dating, stable isotopes, zooarchaeology, paleoethnobotany, palynology, archaeometry. CRM legal trigger: Any federal project must consult Section 106 of the NHPA. 🔄 Key Processes Research Design – Define objectives → choose appropriate methods (survey, remote sensing, excavation). Remote Sensing Workflow Acquire imagery (satellite, aerial, drone). Process data (NDVI, thermal, Lidar point clouds). Identify anomalies → prioritize ground verification. Field Survey Sequence Regional survey → map unknown sites across landscape. Site survey → locate features within a known site. Surface/augur → collect artifacts, record GPS. Excavation Steps Remove topsoil mechanically. Establish grid/trench, assign unit numbers. Hand‑clean with trowels, document stratigraphy, features (cut & fill). Sample strategically (due to cost & destructiveness). Post‑Excavation Analysis Clean & catalogue artifacts → typological classification. Apply scientific techniques (e.g., $^{14}$C dating, isotope ratios). Interpret results → publish. 🔍 Key Comparisons Processual vs. Post‑processual Processual: Emphasizes scientific hypothesis testing, universal laws. Post‑processual: Focuses on human agency, symbolism, multiple interpretations. Passive vs. Active Remote Sensing Passive: Relies on natural radiation (e.g., satellite imagery). Active: Emits energy (laser, radar) and measures return signal (e.g., Lidar). Regional Survey vs. Site Survey Regional: Broad landscape, finds new sites. Site: Detailed mapping of known site features. Mechanical vs. Manual Excavation Mechanical: Fast removal of overburden, low resolution. Manual: Precise, preserves context, essential for scientific data. ⚠️ Common Misunderstandings “Archaeology = digging for treasure.” – Real work is systematic survey, careful recording, and scientific analysis. “All artifacts are equally preserved.” – Preservation bias (organic vs. stone) heavily skews the record. “Radiocarbon dates give exact years.” – Provide calibrated age ranges; require calibration curves. “Post‑processual rejects science.” – It critiques positivist excess but still uses scientific data; adds interpretive layers. 🧠 Mental Models / Intuition Stratigraphic “onion” – Imagine a layered cake: each layer = a time slice; peeling back reveals older cultures. “Context is king.” – An artifact’s meaning comes from where and how it was found, not just its form. Remote sensing as “X‑ray” – Active sensors (Lidar) see through vegetation/soil to reveal hidden structures, like a medical X‑ray. 🚩 Exceptions & Edge Cases Lidar limitations: Dense water, highly reflective surfaces can scatter laser pulses, reducing accuracy. Radiocarbon dating on marine samples: Requires marine reservoir correction due to “old carbon” effect. CRM “hard‑rock” vs. “soft‑rock” sites: Hard‑rock (e.g., stone tools) survive better than organic remains; may mislead cultural intensity assessments. 📍 When to Use Which Choosing survey method: Broad, vegetation‑covered area → Lidar or aerial photogrammetry. Small, targeted area → Ground‑penetrating radar (GPR) or magnetometry. Excavation vs. non‑destructive analysis: High‑value, fragile context → Prioritize remote sensing & sampling before full excavation. Time‑critical development → Implement rapid mechanical removal + strategic hand sampling. Interpretive framework: Seeking causal mechanisms (e.g., subsistence shifts) → Processual approach. Exploring symbolism, identity, or contested narratives → Post‑processual lens. 👀 Patterns to Recognize Repeated artifact styles → Cultural continuity or diffusion. Vertical stratigraphic cuts intersecting earlier features → Site reuse or disturbance events. Magnetic anomalies aligned in regular rows → Possible hearths, kilns, or wall foundations. Isotopic shifts in fauna → Changes in diet, climate, or mobility. 🗂️ Exam Traps “All remote sensing is passive.” – Remember Lidar and laser altimeters are active. Confusing “processual” with “process‑oriented” archaeology – Processual is a specific theoretical movement, not just any focus on processes. Assuming “historical archaeology” only studies written societies. – It integrates material culture with documentary sources. Mixing up NHPA and NAGPRA: NHPA concerns site impacts; NAGPRA protects Native American human remains and cultural items. “Typology = dating.” – Typology classifies forms; it can aid relative dating but does not provide absolute ages.