5 Event an Occurrence Or Happening. Excavate
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event an occurrence or happening. Law of Superposition a geologic concept excavate to dig up the soil in a scientific that states that layers of soil deposited manner. first are below those deposited at a later feature structure; could be either man- date. The layers that are the oldest are made or naturally occurring. beneath those that are younger. final report after an excavation takes lithic referring to stone. place, all the information is gathered maize corn. by the archaeologists and written into a mano a hand-held rock used to grind final report that is released for peer grains, used in conjunction with a review prior to being published. metate. forage to gather food from land. metate a rock used as a base to hold granary a building used to store surplus grains for grinding, used in grains. conjunction with a mano. grid a checkerboard-like network of mission a community established by and uniform horizontal and vertical lines focused on the Catholic Church. Set up that provides guidelines for by Spaniards to colonize New Spain, archaeological excavations. the mission’s purpose was to convert hearth fireplace. North American natives to Christianity history recorded past events. and turn them into tax-paying Spanish Hohokam (means “all gone” or “all used citizens. up” in the O’odham language) the Mogollon refers to the culture found in culture that occupied the desert of the Mogollon Mountains. The south-central Arizona from about A.D. Mogollon Culture existed 300–1450. approximately A.D. 200–1200. huerta a private Mexican-owned garden ostracod water-dwelling crustacean. in Tucson in the 1800s, 25–30 feet paddle and anvil method a pottery square in size. technique used by Hohokam and hunter-gatherer culture people who O’odham people. First, coils of clay are hunt small game animals and gather stacked on top of one another. Once plants from the land to satisfy their the basic shape is decided, the potter diet. places his/her hand inside the pot irrigate to divert water from a river, while holding a smoothing rock (the stream, or lake to farmland usually anvil). The other hand gently pats the using ditches and canals. pot with a paddle to smooth out the laboratory analysis to decipher coils. information in a scientific laboratory Paleo-Indian migratory people who usually involving tests. crossed exposed land in the Bering Law of Original Horizontality Strait from Siberia and spread a geologic concept that states that soils throughout the Americas, following are deposited first horizontally. herds of mammoth, bison, and other big game, around 12,000–8,000 B.C. Vocabulary 5 Piman relating to a language from the research design a plan of action that Uto-Aztecan family. guides an archaeological excavation. pithouse a house built partially below riverine pertaining to an aquatic setting, the surface of the earth. Generally, the such as a river or stream. above surface part was made of sticks, sample grids specific grids chosen by desert brush, and mud. Pithouses archaeologists to excavate usually had a dome shape, no sedentary to remain in one place. windows, and one entrance. sediment material deposited by water, plaiting braiding. wind, or glaciers. pothunter one who illegally removes site a place or area that was used by evidence from an archaeological site. humans. potsherd piece of pottery or ceramic. staple crop a principal plant raised for prehistory the period of time occurring food or used for manufacturing. prior to written language. storage pit underground storage used for presidio a walled fort housing soldiers surplus food. and their families, built by the strata layers. Spaniards to help colonize Spanish- stratification different layers of soil piled claimed land in North America. on top of each other. Presidios were part of a two-pronged stratigraphy the study and approach, in conjunction with interpretation of soil or rock layers. missions, to settle the land. stylistic analysis determining the radiocarbon dating tests organic meaning of an artifact by comparing an materials such as charcoal, bone, or artwork style with that of other wood, to determine the quantity of a cultures. radioactive form called carbon 14 survey to examine a parcel of land to (usually written 14C). Living things ascertain location, condition, and ingest carbon 14, which decays at a extent of property. An archaeological steady known rate. By determining the survey examines land to identify and ratio between carbon 14 and regular record any cultural materials present. carbon in the object, it is possible to temper adding products, such as grass, discover an age range for the object. mica, or sand to clay, to strengthen the relative dating techniques scientific clay for firing measures that tell the age of an artifact, zanjero an elected water judge who site, or feature by relating the object to oversaw the fair and equitable another object. This technique can tell distribution of irrigated water. us whether an artifact is older than, younger than, or the same age as another. It cannot provide an exact calendar date for an artifact. 6 Vocabulary Archaeological Techniques: Documenting Evidence In this lesson, students will practice data recording and observation skills. Students will learn the importance of detailed and accurate data recording by mapping a designated area, recording and reevaluating data, and comparing final product with the original source. Getting Started Objectives Materials • to introduce students to the scientific • graph paper method, archaeological procedures, and • pencils vocabulary terms • rulers • to enable students to perform an • classroom, playground, or gymnasium archaeological survey using scientific methods • tape, clothesline, or chalk • compass Standards Addressed Grades 4–5 1SC-E3 (PO1, PO2), 2SC-E4 Time (PO1) 1–2 class periods Grades 6–8 1SC-E3 (PO1, PO2), 2SC-E4 (PO1), 2SC-E5 (PO3) Key Words archaeology artifacts ceramics context data interpretation excavate features grid lithics research design site survey 7 teacher’s corner Archaeology is the study of human for evidence of human activity, such as behavior by examining the artifacts, or broken pottery, stone chips, broken material objects people have made or glass bottles, or mounds of earth. Earth used. Among these pieces of evidence are mounds could indicate a buried ceramics (pottery), lithics (stone tools), structure or garbage dump. and features (structures). A location that Archaeologists make detailed maps people used (blacksmith shop, school, showing the location of everything animal carcass preparation area) or a they find. Photographs may also be location in which they lived (pithouse taken to record what the site looked community, presidio, boarding house) is like. called a site. Once archaeologists excavate Q. How are archaeological excavations a site and recover the artifacts, they must planned? piece together the story that the objects A. Before archaeologists excavate a site, tell, just like a detective pieces together they prepare a research design. This is a the clues at a crime scene to determine plan of action that addresses the Who, what happened. How do archaeologists do What, When, Where, How, and Why what they do? Archaeologists do their job questions. Some research design in stages: questions might be: a. Survey and records check 1. What kinds of crops were grown b.Testing here? 2. b. Research design Who lived at this site? 3. d. Excavation When did the people use the area? 4. e. Laboratory analysis Where did the people get food? 5. f. Data interpretation Why was the site abandoned? 6. g. Final report How old are the artifacts? The research design summarizes what is Q. What is the first step for an already known about the site and other archaeologist? sites in nearby locations. It identifies A. Archaeologists are often asked to the best excavation methods and the examine an area before development experts who will analyze the artifacts. and construction take place. The first Q. Why do archaeologists try to preserve step is to do a records check and some sites without digging them? survey. Archaeologists read public A. Archaeologists develop new techniques records to discover if the area or all the time. Radiocarbon dating, for surrounding areas have been examined example, first became available in the before and whether any archaeological early 1950s; techniques for “floating” sites are present. Archaeologists will the burned wood and seeds to recover then walk across the surface of the them from soils were not widely project in transects, or lines spaced at practiced until the 1970s. These new regular intervals. Archaeologists search techniques have provided a great deal 8 Lesson 1 Archaeological Techniques: Documenting Evidence of fresh information and have A. If artifacts are large and easily visible, improved archaeologists’ abilities to archaeologists carefully remove them understand the past. Many more new and pack them for shipment to the lab. techniques may become available in the Screening is the most efficient way to next 50 or 100 years that will help recover small items that may be hidden answer questions that are mysteries in dirt clumps or piles. Excavators today. This is one very important shovel dirt onto screens, which are reason for preserving archaeological shaken so that dirt falls through, sites. leaving behind gravel and artifacts. The Another reason for preservation is artifacts are collected, sorted by material that many archaeological sites contain (pottery, stone, animal bone, shell, cemeteries, places, or artifacts that are metal, glass, etc.), and placed in labeled important to Native Americans and bags. The artifacts are taken to the other descendants of people who lived laboratory, where most items are here in the past. Although specific washed and dried. procedures for carrying out Q. What happens during the analysis excavations—even human burials— phase? have been developed, most groups A. Artifacts and samples are sent to experts prefer to see these sites remain for identification and interpretation.