Exercise 9 - Carbonateworld

1) What is the texture classification term for the carbonate rock in the image?

Wackestone

Packstone

Cementstone

Correct! Wrong!

2) What are the grains in the image?

Benthic foraminifera

Fenestellid bryozoans

Worm tubes

Correct! Wrong!

3) What is the type of marine cement in the image?

Botryoidal aragonite

Blocky sparite

Radiaxial fibrous calcite

Correct! Wrong!

4) What is the origin of the Microcodium displayed in the image?

Marine cementation

Meteoric palaeosol

Coral growth

Correct! Wrong!

5) What is the Dunham texture classification term for the carbonate rock in the image?

Rudstone

Packstone

Grainstone

Correct! Wrong!

6) What are the grains?

Peloids

Oncoids

Ooids

Correct! Wrong!

7) What is the pink stained cement?

Isopachous cement

Drusy cement

Poikilotopic cement

Correct! Wrong!

8) What is the mineralogy of the blue-stained cement?

Magnesium calcite

Ferroan dolomite

Ferroan calcite

Correct! Wrong!

9) What is the likely diagenetic environment of the blue-stained cement?

Meteoric

Burial

Marine

Correct! Wrong!

10) What is the replacive mineral in this image in crossed polarizers?

Dolomite

Chalcedony

Glauconite

Correct! Wrong!

Exercise 9

This is a recap of your answers. Red = wrong anser Green= right answer