BO GIAO D{)C vA BAo T~o
TRUC1NG B~ HQC T6NG HQP THANH PH6 HO CHf MINH
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TOM TAT LU~N AN PHO TIfN sf KHOA HQC DfA CHAT
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THANH PHO HO CHi MINH - 1994
LU~N AN DU<)C HOAN THANH T~I
TRUONG D~I HQC TONG H<)P THANH PHO HO CHi IVIINH
NgUdi huang d§n khoa hQc : TRAN KIM THACH
GlAo SVTIEN SI DIA CHAT HQC
Ngu('1i nh~n xet I :
NgUdi nh~'n xet 2 :
Co quan nh~n xet :
Lu~n an se du(fc bao v~ t~i H(n DONG CHAM LUAN A:NNHA NUDC
hQp t~i Truong D~i HQc Tling H(ip Thanh PhC; w\ Chi Minh
Vao h6i . . . gid, ngay . . thang . . . . .. nam 1994.
Co thi tlm hiiu lu~n an t~i Thu vi~n Khoa HQc Tling H(jp
69, Ly Ttf TrQng, thanh rho H6 chi Minh
va Thu vi~n Truong D~i hQc Tling h(ip TP Hi) chi Minh
,.H04" NGU'(ANB VI$'r) DONG ,.BONG L04N AN
B1iicat bien
B1iithllYtri€u bUn
B1iithllYtri€u cat
=Sand beach
=Tidal mud flat
=Tidal sand flat
Bu'ng sail de
B1iitri€u cat cii'asong= Distributary mud sand flat
=Backswamp
CU lao song, c6n song: River island
Doi song
Bfun m~n
Be nt nhien
Bo~n song bo
B6ng bhg tam giac
cMu
B6ng thllYtri€u
Gi6ng c6
Gi6ng mdi
Giua gi6ng
GC!,ngang cat bien
Lu'<;ln cat song
=Point bar
BUn set =Clayey silt
Cat-tho - Sand - coarse
- trung billh= - medium
-1$
- rilt m~n
- fine
- very fine
Ne'p nhan leo =Climbing-ripple
lamination
=Tidal swamp, mangrove swamp IS~p la d<;lns6ng =Ripple lamination
=Naturallevee
=Abandoned course, channel
Delta plain
=Tidally inundated lowland
=Relict beach ridges
=Active beach ridges
=Inter-beach flat
=Barrier
=River bar
Tich chilt bien tie'n =Trangressive deposits
Th€m
Th€m bien khdi
=Terrace
=Open shelf
Thung lUng phil sa =Alluvial valley
Tran tam giac chillI =Delta front
Sp la phdng =Even lamination
Set bUn =Silty clay
Xien cheo =Cross-bedding
D~C DIEM CHUNGCUA Lu4N AN
I. MVC 8!CH NGHIEN CUU :
D~ tai "Dia mqo trilm tieTzl[ng d{Lng Rllllg Sac Gia Dilllz" uu\.Ie
thlfChiQn nhilll :
.Yf.rri~t hQc thu~t, nghien ct1u cac d~ng dia m,!-ou<:ictnlng
cua mQt tam giac chau n~m trQn Vyn trong liinh the) Yi~t Naill va phat
trifn hifu bitt co ban cua mai tnlC5ngctra sang M ap dl.:ll1geho u6ng
b~ng song Oiu Long - vlfa Ida cua mi~n Nam Yi~t Nam.
.Yf. m~t ling dlfng, nhim VaGqui ho<.lchva pilat tri0n kinh
te dja phuong.
2. PHUONG PHAp NGHIEN CUD:
D~ tai ap d\lng phuong phap gicli doan anh may bay qua kh6a
anh ti 1~ 1/50.000 clla nh6m Dornbusch (1969) - thtfc hi~n ph~n lOn 0
dong bing song CU'uLong, dQc IDeo qu6c 1(>4 cii - ket h<;1pvai trlfc £lnh
do 1/50.000 va 1/25.000 va bQ anh may bay cua Rung Sac Gia Dinh ti
1~ 1/12.500, 1/10.000 VaGcac Dam 1980, 1987 va 1992 d6 l~p fa so do
dia m~o tr~m tich clla khu vtfc.
Cac badc thlfChi~n la giai doan IDeo poligon (Iii c6 ki~m tra thlfe
dia theo 1(>trlnh dinh san va chinh ly ho~c be) sung chi tiel. Trong khi
d6, b6 tri cac 10khoan theo tuyen thich h<;1pvdi qua trlnh pilat tri~n eua
tam giac chau n§y. Df. tai dii thlfChi~n hon 60 10khoan dQc tuyen Nhil
Be-Blnh Khanh- Yam Xay-Long Th~nh-Long Hoa-C~n Th~nh va hall
10 10 khoan 0 cac vung Thi~ng Li~ng, Giang Chua, Do Hoa, Tam Than
Hi~p, An Thai Dong, Ly Nhon, Cu Lao Phd L<;1i.Dong thai, t;:Iegia uii
phan tich h6a 54 mall dat , phan tich tMnh ph§n h~t u(> 9S mall (Jat,
chung thuQc cac don vi tr~m tich khac nhau trong khu vtfc ; theo doi SIf
thay d6i trong qua trlnh tnfang thanh cua chung, tu do, d6 nghi huang sU'
d~ng ho~c khai thac h<}p 19.
Cuoi cling, lac gia ket h<;fpvai d"t nhi6u tu li~u mai v6 call truc
tdm tich, moi truong triim tich, Wong lac gilia cac lo<;tinang IU<;fng
song- tri6u- giG - dong song Jen vi~c hlnh thanh cac tam giac chao tren
the giai, d€ ban v~ qui luc;ithlnh thanh va phat tri€n cua tam giac chao
song E>6ngNai niiy.
3. NHUNG £>ONG GaP Mal CUA LUA.N AN :
3.1.- L~p ban d6 dja m<;totriim tich tl J~ 1/25.000 cua vling
nghien cU'u,vai mOt so lo<;ttgi6ng c6 ho~c trung gilia gi6ng c6 chua
du<}cd6 cc;ipden tu truac, cling nhu mOtso don vi dja m?o tdm tich cua
tam giac chao nay, nhling tinh chill 19hoa cua dilt trong tung don vi.
3.2.- Ph~c h6i co che tr~m tich co ban cua cac don vi tdm tich
trong tam giac chau, dua ra qui luc;ithlnh thanh va phat tri€n cua no do
anh huang cua cac dc;ipthuy di~n va thuy nong.
3.3.- £>6nghj huang qui ho?ch dt!a tren cac d~c tinh dia hlnh,
dia m?o, oja chill cong trlnh thuy van, moi tru'ong tt! nhien, o~c tinh dilt
oai th6 nhuBng.
4. Y NGHIA THVC TIEN CUA LU,A.NAN :
Ket qUC!nghien cU'ucua d6 tai la co so khoa hQc cho cong lac qui
ho?ch, phat tri6n huy~n C~n Gio noi rieng va thanh pho H6 chi Minh
noi chung. £>6ng thai, d6 tai con du<}csU'd~ng trong chi 0'-.10san XUfil,
nghien ctiu khoa hQc va d trong giao d~c.
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