Final answer:
The information provided does not contain details about the 9 major planetary boundaries, which are thresholds in the Earth system crucial for human development. Thus, a factually accurate answer detailing these boundaries cannot be provided based on the given information.
Step-by-step explanation:
The concept of planetary boundaries refers to the limits within which humanity can continue to develop and thrive for generations to come. It is a way of understanding the Earth system's capacity to withstand human activity and maintain a stable environment. However, the original information provided does not directly list the 9 major planetary boundaries, as it focuses more on Earth's geology and atmosphere. Therefore, without the correct information to accurately describe the 9 major planetary boundaries, I must refrain from attempting to create an answer that might be incorrect.