TECTONIC HISTORY AND NEW ISOCHRON CHART OF THE SOUTH-PACIFIC

被引：154

作者：

MAYES, CL ^{[1
]}

LAWVER, LA ^{[1
]}

SANDWELL, DT ^{[1
]}

机构：

[1] UNIV TEXAS, INST GEOPHYS, AUSTIN, TX 78759 USA

来源：

JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH AND PLANETS | 1990年 / 95卷 / B6期

关键词：

D O I：

10.1029/JB095iB06p08543

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

We have developed an internally consistent isochron chart and a tectonic history of the South Pacific using a combination of new satellite altimeter data and shipboard magnetic and bathymetric data. Highly accurate, vertical deflection profiles (1-2 μrad), derived from 22 repeat cycles of Geosat altimetry, reveal subtle lineations in the gravity field associated with the South Pacific fracture zones. These fracture zone lineations are correlated with sparse shipboard bathymetric identifications of fracture zones and thus can be used to determine paleospreading directions in uncharted areas. Magnetic anomaly identifications and magnetic lineation interpretations from published sources were combined with these fracture zone lineations to produce a tectonic fabric map. The tectonic fabric was then used to derive new poles of rotation from 12 selected times in the Late Cretaceous and Cenozoic. From our reconstructions, we estimated the former location of the spreading centers in order to derive a new set of isochrons. -from Authors

引用

页码：8543 / 8567

页数：25

共 80 条

[1] TOPOGRAPHY AND EVOLUTION OF EAST PACIFIC RISE BETWEEN 5 DEGREES S AND 20 DEGREES S [J].

ANDERSON, RN ;

SCLATER, JG .

EARTH AND PLANETARY SCIENCE LETTERS, 1972, 14 (03) :433-&

[2] TECTONICS AND EVOLUTION OF THE FERNANDEZ,JUAN MICROPLATE AT THE PACIFIC-NAZCA-ANTARCTIC TRIPLE JUNCTION [J].

ANDERSONFONTANA, S ;

ENGELN, JF ;

LUNDGREN, P ;

LARSON, RL ;

STEIN, S .

JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH AND PLANETS, 1986, 91 (B2) :2005-2018

[3]

[Anonymous], 1982, ANTARCTIC GEOSCIENCE

[4] THE CENOZOIC SUBDUCTION HISTORY OF THE PACIFIC MARGIN OF THE ANTARCTIC PENINSULA - RIDGE CREST TRENCH INTERACTIONS [J].

BARKER, PF .

JOURNAL OF THE GEOLOGICAL SOCIETY, 1982, 139 (NOV) :787-801

[5]

BERGGREN WA, 1985, GEOL SOC AM BULL, V96, P1407, DOI 10.1130/0016-7606(1985)96<1407:CG>2.0.CO

[6]

[7] EASTER VOLCANIC CHAIN (SOUTHEAST PACIFIC) - MANTLE HOT LINE [J].

BONATTI, E ;

HARRISON, CGA ;

FISHER, DE ;

HONNOREZ, J ;

SCHILLING, JG ;

STIPP, JJ ;

ZENTILLI, M .

JOURNAL OF GEOPHYSICAL RESEARCH, 1977, 82 (17) :2457-2478

[8]

Burns R.E., 1973, INITIAL REPORTS DEEP, V21, P197, DOI DOI 10.2973/DSDP.PROC.21.107.1973

[9] THE EARLY CENOZOIC TECTONIC HISTORY OF THE SOUTHEAST PACIFIC [J].

CANDE, SC ;

HERRON, EM ;

HALL, BR .

EARTH AND PLANETARY SCIENCE LETTERS, 1982, 57 (01) :63-74

[10] PLATE KINEMATICS OF THE SOUTH-ATLANTIC - CHRON C34 TO PRESENT [J].

CANDE, SC ;

LABRECQUE, JL ;

HAXBY, WF .

JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH AND PLANETS, 1988, 93 (B11) :13479-13492

← 1 2 3 4 5 6 7 8 →