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pg b084a: Third annual report of the Geological Survey of Texas Publication 5235917-3.

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84

61. Dark brown clay . ........ .......... 20 feet. 550 feet. 62. Grayish blue clay .................. .25 feet. 575 feet. 63. Dark brown clay . ..................20 feet. 595 feet. 64. Joint clay and sand at bottom of boring ........ 5 feet. 600 feet.

2. SECTION FROM MINEOLA TO TYLER ALONG THE LINE OF THE INTERNATIONAL AND GREAT NORTHERN RAILWAY.

This section extends in a southerly direction from Mineola to Tyler, a distance of twenty-five miles. The line passes principally through a low country, descending, for the first four miles, from Mineola towards the Sabine river, and after crossing a wide flood plain or bottom land, rising by successive stages until it reaches Tyler, where it has an elevation of one hundred and ten feet above Mineola, or five hundred and thirty-one feet above tide water.

The actual termination of this line at its northern end is about a mile east of Mineola station, where a railway cut and stream channel show the following sections:

Section shown in cut on Texas and Pacific Railway about one mile east of Mineola:

1. Gray surface soil ...................... . 10 inches. 2. Yellow mottled sandy clay ............ ...... 1 1/2 feet. 3. Mottled yellow and red sand .... ........ . 4 feet. 4. Stratified sand ......................... 2 feet.

In the stream channel from fourteen hundred to sixteen hundred feet east of last section, the section is as follows:

1. Gray sand stained brown in places ............ 2 to 4 feet. 2. Gravel and siliceous pebbles ................. 2 to 10 inches. 3. Cross-bedded brown sand .................. 4 feet. 4. Alternating strata of gray sand and purple colored clay. The clay having changing thicknesses from ten inches at the base to less than half inch at the top, and the sandy strata from one foot at the base to four feet at the surface ..... 20 feet. 5. Stratified blue and gray sand, same as seen in railway cut ... 2 feet.

No. 4 of this section dips at the high angle of thirteen degrees at its western end, but gradually assumes the normal dip of three degrees on going eastward, and No. 5 bends down under the overlying beds at their western end. The high dip of No. 4 may be ascribed to and is probably due to the erosion of some of the underlying deposits.

Going southward along the line of section the country is covered by a brown sand two to five feet thick, resting upon a gray sand four feet thick.

A short distance south of this the combined section of several small cuts shows:

1. Brown sand ...................... 2 to 5 feet. 2. Thinly stratified or laminated sand and ferruginous mate- rial . . ................... . .6 inches to 4 feet.

 

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