Which type of tube sampler is split along the side for easy removal of the sample, is hammered into the soil for collection to a depth based on the length of the spoon, and is best used for samples at shallow depths?

• A. A trier sampler
• B. The push tube sampler
• C. Veihmeyer Tube Sampler
• D. Split Spoon Tube Sampler

Answer: (D)

The key idea is a sampler designed for easy handling and minimal disturbance at shallow depths. The split spoon tube sampler is built as two halves that split along a seam, so after it’s hammered into the soil to the desired depth, you can pry the halves apart and remove the soil sample without crushing or deforming it. The depth you collect to is basically set by the length of the spoon, which is why this type is favored for shallow, quick borings. This design makes it practical for obtaining relatively undisturbed samples in the upper soil layers, where you want a straightforward retrieval with limited equipment. Other options don’t split open to release the sample easily, or are driven or pushed in by different methods, and are better suited to different depth ranges or sampling goals.