Quaternary Geology — Start of the Holocene (Post-Glacial Warming) The interval of global warming that followed the last Pleistocene glaciation marks the beginning of the Holocene epoch approximately how many years ago?

Introduction / Context:
The transition from the Pleistocene (characterized by repeated glacial–interglacial cycles) to the Holocene (our current interglacial) is a standard anchor date in Quaternary geology, paleoclimatology, and archaeology. Many exam syllabi use a rounded figure for quick recall.

Given Data / Assumptions:

• The question asks for the approximate age of the warming that inaugurated the Holocene.
• We use a rounded conventional value suitable for GK exams.
• We are not required to quote the more precise stratigraphic boundary age.

Concept / Approach:

Commonly, the Holocene is said to begin about 10,000 years ago (more precisely ~11,700 years before present), signifying post-glacial warming after the last major Pleistocene glaciation. This rounded figure appears widely in school-level references and competitive exam keys, making “10,000” the best choice among the options provided.

Step-by-Step Solution:

Identify the event: start of the Holocene interglacial.Recall rounded exam value: ~10,000 years.Choose the option matching that conventional figure.

Verification / Alternative check:

Archaeological periodization often references the onset of the Holocene at about 10 kya for transitions in human settlement and climate stabilization, supporting the selected value.

Why Other Options Are Wrong:

1,00,000: Too old; within late Pleistocene glacial cycles.1,000 / 100: Far too recent relative to well-dated post-glacial warming.

Common Pitfalls:

Confusing the Holocene start (~11.7 kya precise) with other Quaternary boundaries (e.g., Pleistocene onset or Younger Dryas timing). Exams typically accept the rounded 10,000 years figure.

Final Answer:

10,000