LINES (CURVED) ENCLOSE

LINES (STRAIGHT) ENCLOSE AREA OF LARGER MAP.
RED BASIN OF SZECHUAN. BROKEN LINE MARKS APPROXIMATELY KNOWN

WESTERN LIMIT OF THE GIGANTOPTERIS FLORA.

YUNNAN AND SURROUNDING REGIONS

(Scale. 1: 15,000,000)

or 236-7 miles to 1 inch.

G. S. I., Calcutta.

UNIV OF

GEOLOGICAL SURVEY OF INDI A.

100°

CHIANG FU
8,200

D

YUNG-PEITING

7.3001

Upper trias.

Upper Red Beds.

From traverses by J. Coggin Brown,

with additions by J. W. & C. J. Gregory, W. Credner and E. Saurin. HHHHHH! Devonian to Permian.

Transition systems.

Yang-tze R.

Archaean.

8.500)

CHEN-NAN CHOU KUANG-TUNG HSIEN

HoYun-nan-il

-An-nan-kuan

Tien-sheng-tang

8,100
Sha-chiao

6,300

Kao-fung-shao

Red River

Black R

101

WU-TING CHOU 6,000

FU-MIN HSIEN

Teu-mentu AN-NING CHOU 11 18,400l

YANG HAI

KUN

KUN-YANG CHOU

103°

G. S. 1., Calcutta.

UNIV OF
FOR