One of the narrow valleys near Natchez, due to this fissuring, is now called the Mammoth Ravine.
"The Antiquity of Man"
Charles Lyell
They include deposits in the body of igneous rocks,-in the form of well-defined veins, replacements along zones of fissuring and shearing, and disseminated masses,-as well as veins and replacements in the rocks, particularly in limestones, adjoining igneous intrusions.
"The Economic Aspect of Geology"
C. K. Leith
Later there is the partial shedding and fissuring of the undermined horn and the exuding of the characteristic discharge-in this case not so watery as that of canker.
"Diseases of the Horse's Foot"
Harry Caulton Reeks