What does pebble analysis means?

"Pebble analysis" is not a standard term in any scientific field. It's possible you're encountering it in a specific context, and it might be a specialized term or a misunderstanding.

To understand what it means, we need more information. Please provide context! For example:

* Where did you see the term? (e.g., a research paper, a news article, a conversation)

* What was the topic being discussed? (e.g., geology, archaeology, engineering)

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Once I have this information, I can help you figure out what "pebble analysis" refers to.