Q.What was the location of the Indian landmass during the formation of the Deccan Traps?

Think of a volcano you’ve seen in a movie — a single cone, a dramatic explosion, lava pouring down one slope. Now imagine that instead of one mountain, the ground itself cracks open along a line hundreds of kilometres long, and from that crack, runny lava floods out like water from a burst pipe. It doesn’t shoot into the air; it spreads sideways, covering everything in its path, layer after layer, until an area the size of a small country is buried under rock that was once liquid fire. That is a flood basalt eruption.

The word “basalt” is the key. Basalt is a dark, heavy volcanic rock, and it forms when lava is very fluid — thin, not sticky. Because it flows so easily, it travels far from the crack before cooling. Over months or years, repeated eruptions pile up these flows, each one maybe ten to thirty metres thick, until the total stack reaches hundreds or even thousands of metres. The result is a flat, step-like landscape called a plateau, and geologists call the whole event a “flood basalt province” or a “large igneous province.”

Here’s the everyday intuition: imagine pouring honey versus pouring water. Honey stays in a lump; water spreads out flat. Basalt lava is like water. So a flood basalt eruption isn’t a violent explosion — it’s a quiet, relentless overflow. The danger isn’t the blast; it’s the sheer volume. One single eruption can cover thousands of square kilometres, and the whole event can last for a million years or more, releasing enormous amounts of gas and heat.

Why does this matter beyond geology? Because flood basalts have happened several times in Earth’s history, and each major one lines up with a mass extinction. The most famous is the Deccan Traps in India — a massive stack of basalt layers that erupted around 66 million years ago, right around the time the dinosaurs died. The lava itself didn’t kill them; the gases it released did. Sulphur dioxide and carbon dioxide poured into the atmosphere, changing the climate, acidifying the oceans, and stressing ecosystems long before any asteroid struck. So a flood basalt is not just a rock formation — it’s a planetary event that can reshape life itself.

For a commerce or humanities student, the useful way to hold this idea is as a “slow-motion catastrophe.” Unlike an earthquake or a tsunami, a flood basalt doesn’t announce itself with a bang. It’s a gradual, relentless process — like a company that doesn’t collapse in one scandal but slowly bleeds cash through bad decisions until the whole system fails. The lava is the visible symptom; the invisible gases are the real damage. That’s why geologists study ancient flood basalts today — not just to understand the past, but to see how rapid, sustained emissions of greenhouse gases can destabilise a planet. The Deccan Traps are a natural experiment in what happens when you pump too much carbon into the air for too long.

A few things worth remembering: …