Geological Features of Ireland

The video explores Ireland's geological history, focusing on the Carboniferous period when limestone was formed. It explains how karst landscapes and features like swallow holes and caves developed. The hydrology of Loch Mask and Loch Carra is discussed, highlighting their unique water systems. The ecological importance of Lough Carra and the role of turloughs in groundwater flooding are also covered. The video concludes by emphasizing the significance of limestone in shaping Ireland's landscape and ecology.

During which geological period was Ireland located near the equator?

• Cretaceous

• Triassic

• Carboniferous

• Jurassic

What type of rock is primarily formed from the remains of marine life?

• Basalt

• Limestone

• Granite

• Sandstone

What is the term for a landscape formed by the dissolution of limestone by acidic water?

• Glacial

• Karst

• Volcanic

• Desert

Which feature is created when surface water goes underground through openings in limestone?

• Geysers

• Swallow holes

• Hot springs

• Fumaroles

How is Loch Mask connected to Lough Carra?

• By a surface river

• By an underground river system

• By a series of lakes

• By a canal

What impact did the opening of the Kong Canal have on Loch Mask?

• Decreased water flow

• Created a new outflow

• Stopped water flow

• Increased water level

What makes Lough Carra a marl lake?

• High nutrient levels

• Presence of cyanobacteria

• High sediment levels

• Low biodiversity

What is a turlough?

• A mountain range

• A type of cave

• A temporary lake over limestone

• A permanent lake

What is the main focus of the Geological Survey Ireland's groundwater program?

• Developing new water sources

• Mapping volcanic features

• Mapping karst features and pathways

• Studying marine life

What contributes to the green color of Ireland's landscape?

• Sandstone formations

• Granite mountains

• Limestone bedrock

• Volcanic soil