Sedimentary environment division by clayey water electrical conductivity and grain size analysis: a case study of borehole CZ85 in the west coastal plain of Bohai Bay, China

Qinwei Kang; Jing Fang; Xia Yan; Yinghui Qu; Tianjiao Wang; Yufei Liu; Fu Wang

doi:10.1117/12.2623534

1 December 2021 Sedimentary environment division by clayey water electrical conductivity and grain size analysis: a case study of borehole CZ85 in the west coastal plain of Bohai Bay, China

Qinwei Kang, Jing Fang, Xia Yan, Yinghui Qu, Tianjiao Wang, Yufei Liu, Fu Wang

Author Affiliations +

Proceedings Volume 12079, Second IYSF Academic Symposium on Artificial Intelligence and Computer Engineering; 1207931 (2021) https://doi.org/10.1117/12.2623534
Event: 2nd IYSF Academic Symposium on Artificial Intelligence and Computer Engineering, 2021, Xi'an, China

Abstract

According to the results of clayey water electric conductivity (EC), foraminiferous abundance and grain size analysis in the borehole CZ85 from the west coast plain of Bohai Bay, combined with the AMS14C dates, the sedimentary strata of borehole CZ85 is detailed divided into nine units from bottom to top: Unit I (40.0–33.0 m), Delta plain sediment affected by seawater; Unit II (33.0–29.4 m), lagoon sediment; Unit III (29.4–22.2 m), sediment in the intertidal zone; Unit IV(22.2–19.2 m), Delta frontal sediment; Unit V (19.2–15.8 m), Delta plain sediment; Unit VI (15.8–9.0 m), watercourse-flood plain sediment; Unit VII (9.0–8.0 m), salt marsh sediment; Unit VIII (8.0–3.6 m), tidal creek sediment; Unit IX (3.6–0.5 m), flood plain sediment. This study shows that the location of borehole CZ85 was affected by seawater twice since the Late Pleistocene：(1) The lagoon sediment from Unit II and sediment in the intertidal zone from Unit III. (2) Salt marsh sediment from Unit VII formed during 7.01-6.72 ka cal BP, which was affected by seawater, caused by the maximum period of the Holocene MIS1 transgression in the western plain of the Bohai Bay. The grain size analysis can identify the hydrodynamic events in sediment accurately, combing with clayey water electric conductivity (EC) and abundance of foraminifera is an effective method to differentiate the sedimentary facies, that compensate the lack of credibility for using a single index.

Citation Download Citation

Qinwei Kang, Jing Fang, Xia Yan, Yinghui Qu, Tianjiao Wang, Yufei Liu, and Fu Wang "Sedimentary environment division by clayey water electrical conductivity and grain size analysis: a case study of borehole CZ85 in the west coastal plain of Bohai Bay, China", Proc. SPIE 12079, Second IYSF Academic Symposium on Artificial Intelligence and Computer Engineering, 1207931 (1 December 2021); https://doi.org/10.1117/12.2623534

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
6 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Oceanography

Curium

Environmental sensing

Water

Analytical research

Floods

Remote sensing

Show All Keywords

Keywords/Phrases

Search In:

Publication Years