Short Answer
A site is divided using grids by marking it into small square sections with the help of ropes, strings, and pegs. Each square is given a number or label so that archaeologists can easily identify and study it.
This method helps in organizing excavation work and recording the exact location of artifacts. It ensures that each part of the site is carefully examined in a systematic way.
Detailed Explanation:
Division of a Site Using Grids
Marking the Site Area
The first step in dividing a site using grids is to mark the entire excavation area. Archaeologists begin by selecting the boundaries of the site. They use measuring tools to determine the size and shape of the area that needs to be excavated.
Once the area is decided, the ground is cleared of vegetation and debris. This makes it easier to mark the grid lines clearly. The surface is then prepared for accurate measurement.
Creating Grid Lines
After marking the site, archaeologists create grid lines across the area. These lines are made using ropes or strings stretched tightly across the ground. Wooden or metal pegs are placed at regular distances to hold the strings in place.
The grid lines intersect each other to form square or rectangular sections. These sections are usually of equal size, such as 1 meter by 1 meter or 5 meters by 5 meters, depending on the needs of the excavation.
Numbering and Labeling
Each grid square is given a unique number or code. This labeling system helps archaeologists identify the exact location of each section. The numbering is usually done using coordinates, such as rows and columns.
For example, one square may be labeled A1, another A2, B1, and so on. This makes it easy to record and locate artifacts found in each grid.
Establishing a Reference Point
A fixed reference point, also called a datum point, is set up at the site. This point is used to measure the position and depth of each grid square. It helps maintain accuracy and consistency throughout the excavation process.
All measurements are taken in relation to this reference point, ensuring that data is recorded correctly.
Excavating Each Grid Square
Once the grid system is set up, excavation begins one square at a time. Archaeologists carefully dig each grid square layer by layer. This allows them to study soil layers and record findings properly.
Working in small sections helps avoid confusion and ensures that no important detail is missed.
Recording Findings
Every artifact found in a grid square is recorded with its exact location, depth, and condition. Archaeologists take notes, draw maps, and sometimes take photographs.
This detailed recording helps in understanding the context of each object and its relationship with other findings.
Maintaining Accuracy and Control
Dividing the site into grids helps maintain control over the excavation process. It prevents mixing of artifacts from different areas and ensures that each part of the site is studied carefully.
It also allows multiple teams to work on different grid squares at the same time without confusion.
Conclusion
Dividing a site using grids is an important method in archaeological excavation. It helps in organizing work, ensuring accurate recording, and maintaining control over the process. This method allows archaeologists to study each part of the site carefully and preserve valuable historical information.