Which one of the following statements with regard to volcanoes is not correct?

The statement regarding the drainage pattern of a dissected volcano cone is incorrect. Volcanic cones, due to their symmetrical and conical shape, naturally develop a radial drainage pattern where streams flow outward from a central high point. Even as the cone undergoes dissection and erosion, the initial radial arrangement of valleys and streams typically persists as the dominant geomorphological feature [3]. Regarding the other options, stratovolcanoes produce lava flows that can follow valleys and, being more resistant to erosion than surrounding soft sediments, eventually form 'inverted relief' such as lava ridges or mesas [2]. Hawaiian shield volcanoes are indeed characterized by fluid basaltic flows that build broad domes, which are subsequently eroded by streams into deep valleys with steep heads as the landscape matures [3].

Sources

1. [3] Physical Geography by PMF IAS, Manjunath Thamminidi, PMF IAS (1st ed.) > Chapter 11: Volcanism > 1) Hawaiian Eruption > p. 145
2. [2] https://www.sciencedirect.com/science/article/pii/S2577444122000065