Arch. Quiz 2 Flashcards
(49 cards)
How does geomorphology work?
looking at various processes that affect landscapes, classifying and analyzing landforms, considering both short and long-term events, studying and visualizing landforms, and the impact of climate
How can geomorphology disipline archaeology?
It forces archaeologists to consider a multitude of factors when studying the land.
What are common geological formation processes?
weathering, deposition, plate tectonics, volcanos, partial markings, and magmatic differentiation
What are the different ways archaeologists can think about site formation processes
cultural processes, natural processes, taphonomy, post-depositional processes, spatial analysis, chronological context, or cultural landscape
Cultural Depositional Process Components
construction, discarding, ritual activities
Disturbance Process Components
natural events, human activities, bioturbation (movement of soil and artifacts)
Reuse Process Components
reoccupation, repurposing, cultural memory
What are the common archaeological timescales?
BC, AD, CE, BCE, BP
BC
“before Christ”, e.g., 3200 BC.
AD
anno Domini, “in the year of the Lord”: from the year after the birth of Christ, e.g., AD 1066.
CE
“Common Era”: the same as AD, except without
religious connotation or privilege.
BCE
“Before Common Era”: the same as BC, avoiding religious connotation.
BP
Before Present”: AD 1950 arbitrarily selected as the zero point.
Common Relative Dating techniques techniques
Stratigraphy, Seriation, Typology, Cross-Dating
How does Stratigraphy work?
analyzing the sequence of layers, and establishing a relative timelines
How does Seriation work?
arranging artifacts in a sequence based on changes in style or frequency over time. By observing the progression of design or technology, researchers can infer relative ages.
How does Typology work?
classifies artifacts into types based on their characteristics, such as form or function. By comparing artifact types across sites, archaeologists can deduce relative ages based on known chronological sequences.
How does Cross-Dating work?
comparing artifacts or features from different sites or contexts that share similar characteristics. If two sites contain similar items from known chronological contexts, they can be inferred to date to the same period.
What are the common Absolute Dating techniques?
Radiocarbon (C-14), Dendrochronology (Tree-Ring), Thermoluminescence, Potassium-Argon, Uranium Series, OSL
How does C-14 Dating work?
measures the decay of carbon-14 in organic materials. All living organisms absorb carbon-14, and when they die, this isotope begins to decay at a known rate (half-life of about 5,730 years).
How does Tree-Ring Dating work?
uses the growth rings of trees to establish precise calendar dates. Each ring corresponds to a year of growth, and patterns of wide and narrow rings can be correlated with other trees to create a timeline.
How does Thermoluminescence Dating work?
dates crystalline materials (like pottery) that have been heated. When these materials are heated, they release trapped electrons. The accumulated charge can be measured to determine when the item was last heated.
How does Potassium-Argon Dating work?
measures the decay of potassium-40 to argon-40 in volcanic rock.
How does Uranium-Series dating work?
analyzes the decay of uranium isotopes in calcium carbonate materials, like stalactites or shell deposits.